A Level Physics Advanced Information Revision : ) Experimental skills in materials are important in the OCR Advanced Information but also relevant to other exam boards.
Please note that is not a complete list and many many different variation of experiments could come up in practicals.

Full in depth playlist of online lessons on materials: https://www.youtube.com/playli....st?list=PLSygKZqfTjP
Note: springs in series and parallel should be included in this video as well. Please see this here:
https://youtu.be/WMHC4txjK0k

Chapters:
00:00 Intro
00:15 Tensile and Compressive Forces
00:58 Hooke's Law
02:25 Hooke's Law experiment
04:27 Work Done by a spring and Elastic Potential Energy
06:38 Stress strain
08:45 Ultimate Tensile Strength
09:48 Young's Modulus
10:48 Experiment to determine Young's Modulus
17:06 Ductile material, elastic and plastic deformation
17:57 Ductile material - Stress and Strain Graph
19:26 Brittle Material - Stress and Strain Graph
20:07 Rubber and Polyethene - Stress and Strain Graph

This is excellent A Level Physics revision for all exam boards including OCR A Level Physics, AQA A level Physics, Edexcel A Level Physics, CIA Cambridge International A Level Physics, Eduqas etc.

Forces in physics refer to the interactions between objects that cause changes in their motion or shape. They are described using Newton's laws of motion and are crucial in understanding the behavior and motion of objects in the physical world. Here are some common types of forces in physics:

1. Gravitational Force: This force is responsible for the attraction between objects with mass. It is the force that keeps planets in orbit around the sun and objects grounded on the Earth.

2. Normal Force: The normal force is the force exerted by a surface to support the weight of an object resting on it. It acts perpendicular to the surface, preventing objects from falling through it.

3. Frictional Force: Friction is the resistance that opposes motion when two objects come in contact. It occurs due to the roughness of surfaces. Frictional force acts parallel to the surfaces in contact and can either be static (preventing motion) or kinetic (opposing motion).

4. Tension Force: Tension is the force exerted by a string, rope, or a similar object when it is pulled at both ends. It transfers force uniformly along its length and is responsible for maintaining the integrity of the object.

5. Applied Force: An applied force is the force exerted on an object by a person or object. It can be used to push, pull, or move an object in various directions.

6. Spring Force: When an elastic object, such as a spring, is compressed or stretched, it exerts a force according to Hooke's law. This force is directly proportional to the displacement from the object's equilibrium position.

7. Electrical Force: Electrical forces exist between charged particles, such as electrons and protons. Like charges repel each other, while opposite charges attract.

8. Magnetic Force: Magnetic forces result from the interaction between moving charged particles (currents) or magnetic fields. Magnets can attract or repel each other based on their poles.

9. Buoyant Force: Buoyant force acts on objects immersed in a fluid (liquid or gas) and is directed upward. It is responsible for the ability of objects to float in a fluid and is determined by the density of the fluid and the displaced volume.

These are just a few examples of forces in physics. Understanding and analyzing these forces is essential in the study of mechanics and other branches of physics, allowing us to predict and explain the behavior of objects in various scenarios.

Resolving forces in depth video: https://youtu.be/GqyI3zl9P_oArchimedes Principle in depth video: https://youtu.be/mDavwJOiYJYChapters:00:00 F=ma, The net force02:18 The Newton02:40 Free Body Diagrams, Types of Forces08:05 Net Force Example Question11:48 Drag16:06 Experiment: Motion of a ball through a viscous liquid18:32 Resolving Forces on a slope21:42 Centre of gravity, experiment23:48 Moments26:20 Non perpendicular Moments29:05 The Principle of Moments30:44 Force Couples and Torque32:00 Triangle of forces34:19 Density and Pressure35:00 Pressure at a height, h.37:00 Archimedes PrincipleThis is excellent A Level Physics revision for all exam boards including OCR A Level Physics, AQA A level Physics, Edexcel A Level Physics, CIA Cambridge International A Level Physics, Eduqas etc.

Join my free Physics Newsletter: https://zphysicslessons.net/about
My Physics Workbooks: https://zphysicslessons.net/my-workbooks
Full list of my revision videos:
https://www.youtube.com/playli....st?list=PLSygKZqfTjP

My online lessons on motion:
https://www.youtube.com/playli....st?list=PLSygKZqfTjP

Chapters:
00:00 Independence of vertical and horizontal motion
01:31 Vertical and horizontal components
02:55 How the components vary
04:44 Calculating the maximum height
07:17 Maximum Range

This is excellent A Level Physics revision for all exam boards including OCR A Level Physics, AQA A level Physics, Edexcel A Level Physics, CIA Cambridge International A Level Physics, Eduqas etc.

Get my Uncertainty Workbook: https://koji.to/k/9uCs
Teacher Version (for your entire institution): https://koji.to/k/9uCx

All of my revision videos:
https://www.youtube.com/playli....st?list=PLSygKZqfTjP

Please also revise:
Graphical methods:
https://youtu.be/tMkSM6gFKWM

Uncertainty from a data set:
https://youtu.be/JIJf_aNUDaw

Foundations of Physics complete playlist with more examples and online lessons on uncertainties:
https://www.youtube.com/playli....st?list=PLSygKZqfTjP

Chapters:
00:00 Intro
00:18 Absolute Uncertainties
01:33 Percentage Uncertainties
03:44 Combining Uncertainties
04:14 Adding or Subtracting
06:31 Multiplying or Dividing
08:21 Raising to a power

My Physics Workbooks: https://zphysicslessons.net/my-worksheets
Next step: Vectors practice questions: https://youtu.be/tMr--psNVxM

Part 1 Foundations of Physics: https://youtu.be/WOckc29sZJA
All the Maths for A Level Physics: https://youtu.be/neBotgd2PKA
Credit: Music for the intro: "At the top", provided by Camtasia included Royalty Free Music
Chapters:
00:00 Intro
00:15 Scalars and Vectors
03:09 Distance and displacement
04:51 adding parallel vectors
05:39 adding perpendicular vectors
08:47 resolving vectors
14:46 adding non-perpendicular vectors - scale diagram
16:31 adding non-perpendicular vectors - sine and cosine rules
20:47 adding non-perpendicular vectors - resolution

Join my free Physics Newsletter: https://zphysicslessons.net/about
My Physics Workbooks: https://zphysicslessons.net/my-workbooks
Part 2: All of projectile Motion:
https://youtu.be/WRWFpYeETHM

Instantaneous velocity video: https://youtu.be/aV47J1Leam4
Chapters:
00:00 Intro
00:37 Distance and displacement
01:55 Average speed and velocity
03:52 Instantenous velocity and the gradient of the tangent
06:39 Displacement time graphs and distance time graphs
07:43 Acceleration
09:16 the area under a velocity time graph is displacement
10:10 SUVAT equations and examples
17:04 Falling under gravity
18:17 Calculating the maximum height
21:38 An experiment to determine g, method 1
26:42 An experiment to determine g, method 2
27:45 Proofs and derivations of the SUVAT equations
36:00 Stopping distance, thinking distance and braking distance

This is excellent A Level Physics revision for all exam boards including OCR A Level Physics, AQA A level Physics, Edexcel A Level Physics, CIA Cambridge International A Level Physics, Eduqas etc.

Join my free Physics Newsletter: https://zphysicslessons.net/about
My Physics Workbooks: https://zphysicslessons.net/my-workbooks
A rather long video covering the section on Quantum Physics on the OCR Physics A specification, however applicable to all exam boards. Remember, after you have revised the content - time for practice questions! : )

Check out all of my revision videos:
https://www.youtube.com/playli....st?list=PLSygKZqfTjP

This is excellent A Level Physics revision for all exam boards including OCR A Level Physics, AQA A level Physics, Edexcel A Level Physics, CIA Cambridge International A Level Physics, Eduqas etc.
Chapters:
00:00 Photons
01:26 Energy of a Photon
03:06 Base Unit of Planck's constant, h
04:40 The Electronvolt, eV conversion factors
06:24 Photoelectric Effect, Work Function, Threshold Frequency
10:03 The Gold Leaf Electroscope Experiment
13:50 Einstein's Photoelectric Effect Equation
19:13 Why Maximum Kinetic Energy?
20:27 Graphs
22:19 Wave Particle Duality - Electron Diffraction
23:40 De Broglie Wavelength

Geometry is a branch of mathematics that deals with the study of the properties, relationships, and measurement of 2D and 3D shapes. In 2D geometry, we focus on the properties and relationships of flat shapes such as points, lines, angles, triangles, quadrilaterals, and circles.

Points are the basic building blocks of geometry. They define the position and location of objects in 2D space. A line is a straight path with infinite length that connects two points. An angle is the space between two intersecting lines or planes.

Triangles are 2D shapes that are formed by connecting three lines. They have three sides, three angles, and three vertices. Based on the length of their sides and angles, triangles are categorized into scalene, isosceles, and equilateral triangles.

Quadrilaterals are 2D shapes that have four sides and four vertices. The most common quadrilaterals are squares, rectangles, parallelograms, rhombuses, and trapezoids. These shapes have unique properties that define their symmetry, angles, and side lengths.

Circles are 2D shapes that are defined by a center point and a radius. They have an endless number of points on their circumference, and all of these points are equidistant from the center of the circle.

In 2D geometry, we use various tools and techniques to measure and calculate the properties of these shapes. For example, we use formulas to calculate the perimeter and area of triangles and quadrilaterals, and we use measurements to calculate the radius, circumference, and area of circles.

Overall, 2D geometry plays a fundamental role in many areas of math and science, including engineering, architecture, and physics. Understanding the principles and properties of 2D shapes helps us to better understand and analyze the world around us.

This compilation of our Napoleonic Wars series covers the period from 1809 to the Emperor's abdication in 1814. Along the way we encounter the horrors of the French occupation of Spain and Portugal, Napoleon's disastrous invasion of Russia, and the great struggle for German in 1813. The series concludes with arguably Napoleon's finest campaign - his doomed defence of Paris in 1814.

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Thank you to our series partner Osprey Publishing https://ospreypublishing.com/

Thank you to Nuneaton Museum & Art Gallery for kind permission to use 'The Battle of Vitoria' painting by James Prinsep Beadle.

Special thanks to Alexander Averyanov for kind permission to use his paintings 'Battle of Smolensk' , 'Bivouac', 'Artilleryman's Exploits', 'Prince Pyotr Bagration at Borodino: The Last Counterattack', 'Horse Guards at the Battle of Borodino', 'The Fighting for Shevardino Redoubt', 'The Fighting for Bagration Flèches', 'Maloyaroslavets', 'At Gorodnya 25 October 1812', 'Council of War at Gorodnya'.

Special thanks to Egor Zaitsev for kind permission to use his painting 'Prayer Before the Battle of Borodino'.

📚Recommended reading (as an Amazon Associate I earn from qualifying purchases):
📖 Campaign: Borodino 1812 by Philip Haythornthwaite https://geni.us/YNVnu
📖 Combat:French Guardsman vs Russian Jäger 1812-14 https://geni.us/rWnOT
📖 Napoleon's Guard Infantry by Philip Haythornthwaite https://geni.us/sbj92uT
📖 The Napoleonic Wars by Todd Fisher http://geni.us/R5ZI9c
📖 Salamanca 1812: Wellington Crushes Marmont by Ian Fletcher https://geni.us/h0Ha
📖 The Cossacks 1799 - 1815 by Laurence Spring https://geni.us/mW1x2
📖 Lützen & Bautzen 1813: The Turning Point by Peter Hofschröer https://geni.us/NS4fkL
📖 Leipzig 1813: The Battle of the Nations https://geni.us/fZqo
📖 1813: Leipzig - Napoleon & the Battle of the Nations by Digby Smith https://geni.us/GMqpsG1

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An artificial intelligence (AI) system engaged in a live, public debate with a human debate champion at Think 2019 in San Francisco (watch replay). At an event sponsored by IBM Research and Intelligence Squared U.S., the champion debater and IBM’s AI system, Project Debater, began by preparing arguments for and against the resolution, “We should subsidize preschool.” Both sides then delivered a four-minute opening statement, a four-minute rebuttal, and a two-minute summary.

https://www.ibm.com/blogs/rese....arch/2019/02/ai-deba

These are Full Audio Books of the Bible Acts thru Revelation (King James Version) I use calm & relaxing ambient background music (A paid licensed track from "Soothing Relaxation" Peder B. Helland) Who I highly recommend for his great talents as a composer of music for whatever need you may have for background tracks for projects.

Click this Link to visit his website: soothingrelaxation.com

And this is his Youtube Link:
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Narrated by Max McLean who is the "Official Voice of the Listeners Bible". He has been nominated for four awards from the Audio Publishers Association for his narration of The Listener’s Bible. His creative work has been cited with distinction by the New York Times, Washington Post, Boston Globe, Chicago Tribune, Wall Street Journal, and CNN to name a few media outlets.

This is the Link for His Website:
https://listenersbible.com/about-max-mclean/

I've given special attention to produce these files with high quality sound, speed & tone/pitch. For the Best ambient experience, Headphones are recommended.

These are great to listen to as you fall asleep, meditate, or just for relaxing background noise at the office or home. The video's also make a great screensaver also. All video footage used in these are copyrighted, created and produced by myself (Gospel Productions by Joe Hackney) all rights reserved. If you would like to share these videos, please copy and paste this full description into your description. PLEASE DO NOT RE-UPLOAD THESE VIDEOS AS IF THEY WERE CREATED BY YOU.

May you be blessed and grow spiritually as you listen to the Word of God.

~Joseph P. Hackney
Mark 16:15 Internet Ministries &
Gospel Productions by Joe Hackney

You can also follow my other ministry pages on these Social Networks Below

https://www.facebook.com/Gospe....lProductionsbyJoeHac

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Equation of State of an Ideal Gas
NOTE: at the end, the conversion between Kelvin and Celsius should use 273 rather than 237.

1 + 1 = 3 Proof | Breaking the rules of mathematics.
One plus one equals three is possible only by breaking the rules of mathematics. 1+1=3 is not supported by mathematical logic. These strange results may come by the mistake during the calculations. This viral math tricks video is given here to show a message that a single mistake in mathematical calculations can lead to a destructive result.


The second part of this video containing how to prove 2+2 = 5. Two plus two equals five is an old mathematical illusion that also proves that a mistake in the calculation can make different results. 2+2=5 viral math problem may puzzle anyone. But if someone carefully watches the 2+2=5 video, there is a mistake in the calculation. The secret of 2+2=5 is hidden in its calculation. The ground rules of mathematics were not followed in 2+2=5 calculations.


The third part of this video shows how easy to multiply anything by 11. This fun of mathematics video is intended to show you a message that a simple mistake in mathematical calculations may lead to wrong results.
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Watch other interesting videos on Matescium
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Mathematics ca prove anything: https://youtu.be/DYDMudoi_mw
5 5 5 = 6 How | 6s Challenge | Part 2: https://youtu.be/NbJGLIYA-6A

0 0 0 = 6 How | 6s Challenge: https://youtu.be/io0WIBzx_jU
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#1+1=3 #mathtricks #viralmath #1+1=3mathtrick #1+1=3How #1+1=3Proof

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Demonstration of the calculations of the resultant force and direction for a concurrent co-planar system of forces.

This video demonstrates the tabular method for 2d systems.

Get more lessons like this at http://www.tebtalks.comIn this lesson, you will learn an introduction to physics and the important concepts and terms associated with physics 1 at the high school, college, or university level.We will review Newton's laws of motion, projectile motion, force, energy (potential and kinetic energy), gravitation, momentum, collisions and more.

Signup for your FREE trial to The Great Courses Plus here: http://ow.ly/s2UK30r2D3q
Five areas of physics worth remembering: Classical mechanics, energy and thermodynamics, electromagnetism, Relativity, and Quantum Mechanics. Classical mechanics - two main concepts worth knowing. The first is Newton’s second law: F= ma: Force equals mass times acceleration. If you apply a force to a fixed mass, it tells you how much acceleration you will get. And knowing acceleration which is the change in velocity, you can make predictions.

The second equation is the law of universal gravitation. it allows us to determine the motion of heavenly bodies. It says that the gravitational attraction between two bodies is the product of their masses divided by the distance between them squared, times a constant, called Newton’s gravitational constant.

Energy is not a vector like force or momentum, but it is just a number. Work is closely related to energy. It is force times distance traveled. Energy for most objects consists of kinetic energy plus potential energy. KE is the energy of motion, It is KE = ½ M V^2 – the more mass you have and/or the more velocity you have, the more energy you have.

Gravitational potential energy is expressed as PE = m g h – mass times the gravitational acceleration times the height. The total energy of an object is both Kinetic energy plus potential energy. Potential energy can take many forms. Gasoline or petrol has chemical potential energy. Important: Energy is always conserved. It is not created or destroyed. It only changes form.

Thermodynamics is the study of work, heat, and energy on a system. We showed energy is how much work you could do. But another form of energy is thermal energy. If a car is moving and you apply the brakes, the kinetic energy of the car gets converted to thermal energy, created by friction of the car’s brakes. Temperature is the average kinetic energy of atoms in a system. Thermal energy is the total kinetic energy of atoms in a system.

Entropy is a measure of disorder, or more accurately, the information required to describe the micro states of a system. The 2nd law of thermodynamics states that entropy of an isolated system can never decrease. Energy at lower entropy can do more work than energy at high entropy. The one way flow of Entropy seems to be the only reason we have a forward flow of time.

Electromagnetism is the study of the interaction between electrically charged particles. The essentials are in Maxwell’s equations. If you have a static object with a charge, it will affect only other charges. If you have a static magnet, it will affect only other magnets. It will not affect charges. But if you have a moving charge, it will affect a magnet. And if you have a moving magnet, it will affect a charge. The constants mu naught and epsilon naught are the permeability and permittivity of free space. These two constants determine the speed of light because they measure the resistance of space to changing electric and magnetic fields.

Special Relativity: Einstein presumed that the speed is the same in any frame of reference. This was one of the postulates.
The second postulate was principle of relativity - the laws of physics are the same for all observes who are moving at the same velocity relative to each other. Einstein showed that the only way these can be true is if time was not fixed, but was relative.

General relativity: Later Einstein showed using the same assumptions, there would be no way to tell if you were in an accelerating reference frame or standing stationary on earth. A flashlight beam will bend in gravity. But since light always takes the shortest path between any two points, this means that space-time itself is bending.

Quantum mechanics: Three principles are important. First by Max Planck, says that energy is not continuous, but is quantized. The amount of energy equals the frequency of the radiation times Planck's constant. Using this, Einstein later showed that a photon is both a wave and a particle.

The second is the Heisenberg's uncertainty principle: you cannot know both a particle’s exact position and it’s exact momentum at the same time. For a particle with mass, this means if you know exactly where a particle is, you don’t know how fast going. If you know exactly how fast it’s going, you don’t know where it is.
#allphysics
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Schrodinger's equation: prior to measurement, quantum systems are in superposed states. This means that their properties can only be expressed as a wave function. A wave function simplified, is a set of probabilities. So in a hydrogen atom, you can’t know where to find the electron in advance. All you can know is the probability of where you might find it, if you measured it. Prior to measurement, all quantum systems are waves of probabilities. This is not a limitation of our measuring devices. It is a limitation of reality.
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This chemistry video tutorial provides a basic introduction into the 4 states of matter such as solids, liquids, gases, and plasma. Solids have a definite shape and volume. Liquids have a definite volume but not a definite shape since they assume the shape of the container. Gases do not have a definite volume or shape. Solids and gases are fluid which mean they have the ability to flow. Plasma is an ionized gas that can conduct electricity. Solids and liquids have a relatively high density and gases have a low density.

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Chemistry - Basic Introduction: https://www.youtube.com/watch?v=-KfG8kH-r3Y
Scientific Notation Review: https://www.youtube.com/watch?v=ZtB0vJMGve4
Significant Figures Review: https://www.youtube.com/watch?v=l2yuDvwYq5g
Unit Conversion Problems: https://www.youtube.com/watch?v=eK8gXP3pImU
Accuracy and Precision: https://www.youtube.com/watch?v=0IiHPKAvo7g
Density Practice Problems: https://www.youtube.com/watch?v=9CKDQE35qXQ
Pure Substances & Mixtures: https://www.youtube.com/watch?v=OHhnm2p5G3o
Homogeneous & Heterogeneous Mixtures: https://www.youtube.com/watch?v=eI-tmv4DLEk
Physical and Chemical Changes: https://www.youtube.com/watch?v=YE2xaMsoGFU
Solids, Liquids, Gases, & Plasma: https://www.youtube.com/watch?v=9TVOlTolKFA
Physical Vs Chemical Properties: https://www.youtube.com/watch?v=gH1R87ahFvA
Law of Conservation of Mass: https://www.youtube.com/watch?v=eBTNzScLUg4
Law of Definite Proportions: https://www.youtube.com/watch?v=ly0ywRdVG_M
Law of Multiple Proportions: https://www.youtube.com/watch?v=sxE95VOY-YY
Rutherford's Gold Foil Experiment: https://www.youtube.com/watch?v=sNQsdrqsD_s
Cathode Ray Tube Experiment: https://www.youtube.com/watch?v=i6zyPOSreCg
Atoms - Basic Introduction: https://www.youtube.com/watch?v=acdkMeEKCNQ
Cations and Anions Explained: https://www.youtube.com/watch?v=aAV2DMAI5f8
Diatomic Elements & Molecules: https://www.youtube.com/watch?v=gi337Mx7wTc
Elements, Atoms, & Molecules: https://www.youtube.com/watch?v=pSJeMJaCkVU
Protons, Neutrons, & Electrons: https://www.youtube.com/watch?v=65dDZulPhtg
Average Atomic Mass: https://www.youtube.com/watch?v=JT18bDAadQ0
What Are Isotopes? https://www.youtube.com/watch?v=bagegEZBtOs
Ionic and Covalent Bonding: https://www.youtube.com/watch?v=uDFLHTDJ4XA
Naming Molecular Compounds: https://www.youtube.com/watch?v=3agUL7-ezXk
Writing Formulas - Molecular Compounds: https://www.youtube.com/watch?v=KrJnnwLDY6o
Naming Ionic Compounds: https://www.youtube.com/watch?v=5rSgduXqhhU
Writing Formulas - Ionic Compounds: https://www.youtube.com/watch?v=GJ4Mds0CWLE
Writing Formulas - Polyatomic Ions: https://www.youtube.com/watch?v=stu2omPRvbs
Introduction to Moles: https://www.youtube.com/watch?v=EowJsC7phzw

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This physics video tutorial explains the concept behind Newton's First Law of motion as well as his second and third law of motion. This video contains plenty of examples and practice problems. This video is useful for high school and college students studying physics.


Physics Basic Introduction and Final Exam Review:
https://www.video-tutor.net/ph....ysics-basic-introduc


Here is a list of topics on Newton's 3 Laws of Motion:
1. Newton's First Law of Motion - An object at rest will remain at rest unless acted on by an unbalanced force.
2. Second Part of Newton's First Law of Motion - An object in motion will continue in motion unless acted on by a net force
3. The net force is zero when an object moves with constant velocity
4. Newton's 1st Law of Motion Examples & Demonstrations - Ball rolling on a rough surface with friction such as a carpet vs a ball rolling on a smooth surface such as ice with very little kinetic friction.
5. Earth moves continually in space - lack of frictional forces
6. Newton's Second Law of Motion - Force = Mass times acceleration
7. Newton's 2nd Law of Motion - Force is proportional to mass and acceleration. Mass and acceleration are inversely related when the force applied is constant.
8. Newton's Third Law of Motion - Action Reaction Pairs. For every action force, there is an equal but opposite reaction force.
9. Newton's 3rd Law of Motion Examples - Astronaut throwing a ball in space. Fisherman throws a package out into see and experiences a recoil velocity.
10. Impulse equals force multiplied by time
11. Momentum - Mass in Motion. Momentum equals mass times velocity.
12. Scalar vs Vector Quantities - Magnitude and Direction
13. Impulse - Momentum Theorem
14. Variation of Newton's Second Law of Motion - Force is the rate of change of momentum
15. Applied Force, Frictional Force, Normal Force vs Weight Force
16. How to calculate Final Velocity / Speed Using Acceleration
17. Acceleration is the rate of change of velocity
18. One Dimension Kinematics Formulas

Physics - Basic Introduction: https://www.youtube.com/watch?v=b1t41Q3xRM8
Physics 1 Formulas: https://www.youtube.com/watch?v=E8C06X-v0_A
Newton's 1st Law of Motion: https://www.youtube.com/watch?v=Fr5EMXZaujc
Newton's 2nd Law of Motion: https://www.youtube.com/watch?v=Ee6CHn0MRKE
Newton's 3rd Law of Motion: https://www.youtube.com/watch?v=TxhESW6YtOg
Mass Vs Weight: https://www.youtube.com/watch?v=LB_WoV071vc
Free Body Diagrams: https://www.youtube.com/watch?v=52R61aSWHg0
Normal Force Problems: https://www.youtube.com/watch?v=uyJTwljKSJ4
Elevator Physics Problem: https://www.youtube.com/watch?v=sVVKpRvuNG0
Net Force Physics Problems: https://www.youtube.com/watch?v=tfAJDST3cjo
What Is a Normal Force? https://www.youtube.com/watch?v=fRQq4_ry9-Q
Static Friction and Kinetic Friction: https://www.youtube.com/watch?v=RIBeeW1DSZg
Contact Forces: https://www.youtube.com/watch?v=Iin29KFE4So
Tension Force Problems: https://www.youtube.com/watch?v=F5oqJ5t-pa4
Types of Forces: https://www.youtube.com/watch?v=E626-DiQgRs
Inclined Planes: https://www.youtube.com/watch?v=ufgY237M5KQ
Simple Machines: https://www.youtube.com/watch?v=WI8j3UlR-SE
Pulley Physics Problems: https://www.youtube.com/watch?v=N6IhkTjWrd4
The Pulley - Simple Machines: https://www.youtube.com/watch?v=GAegAHnfkMs
The Lever - Simple Machines: https://www.youtube.com/watch?v=0HSJx3CHZJ4
Mechanical Advantage: https://www.youtube.com/watch?v=SPTNKnCqlW4
What Is a Force? https://www.youtube.com/watch?v=vZ0ehaOEZKE
The 4 Fundamental Forces: https://www.youtube.com/watch?v=k1jaDh97Q_g
Physics Forces Review: https://www.youtube.com/watch?v=pL2YfC-22Uc
Physics 1 Final Exam Review: https://www.youtube.com/watch?v=CwkhvFlNFp0

introduction to physics

The modern periodic table is based on the periodic law: "The chemical properties of elements are a periodic function of their atomic number." Let's see how is this different from Mendeleev's periodic table and how this solves for its predecessor's limitations.
More free lessons & practice https://www.khanacademy.org/sc....ience/in-in-class-10

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⁣A speech refers to an informal or formal talk given to an audience. Giving a speech allows you to address a group of people to express your thoughts and oftentimes, your opinion.

⁣The ability to pass Biology exams lies in writing and rewriting notes, questions and answers to internalise the concepts, improve on spellings and writing.

The ability to pass Biology exams lies in writing and rewriting notes, questions and answers to internalise the concepts, improve on spellings and writing.

In this video you will learn about the Biological practical and how to attempt questions.

Practical Chemistry with Experiments. Chemistry is the science of experiments. Scientific concepts can be easily understood by performing ...

⁣The cosine rule, also known as the law of cosines, relates all 3 sides of a triangle with an angle of a triangle. It is most useful for solving for missing information in a triangle. For example, if all three sides of the triangle are known, the cosine rule allows one to find any of the angle measures.

Let's explore the ideas of redox reactions

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Do you desire to receive greater revelation from God's Word? David Diga Hernandez shares 5 Bible study keys you can apply right now. If you’re a beginner in Bible study, these keys will increase your ability to understand God’s Word.

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00:00 - Introduction
00:29 - 5 Simple Keys to Studying the Bible
00:46 - Key #1: Revelation of the Holy Spirit
07:07 - Key #2: Dedication to Reading the Word
11:42 - Do You Feel Like You're Not Understanding What You Read?
15:50 - Key #3: Observation & Interpretation
22:05 - A Helpful Study Method: Macro - Micro - Macro
32:19 - Why Are There Chapters and Verses in the Bible?
40:22 - Key #4: Meditation on the Word of God
41:57 - Is it Hard for You to Remember What You Read?
50:05 - Key #5: Application - Apply the Scripture
55:16 - Receive This Prayer
58:32 - You Can Get Involved

#encountertv #daviddigahernandez #viralrevival #bible #bibleteaching #biblestudy #biblestudytools

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/History_of_Africa


00:03:07 1 Prehistory
00:03:16 1.1 Paleolithic
00:06:57 1.2 Emergence of agriculture and desertification of the Sahara
00:11:23 1.3 Central Africa
00:12:11 1.4 Metallurgy
00:14:05 2 Antiquity
00:14:57 2.1 Ancient Egypt
00:19:50 2.2 Nubia
00:23:09 2.3 Carthage
00:25:58 2.3.1 Role of the Berbers
00:27:58 2.4 Somalia
00:28:38 2.5 Roman North Africa
00:34:02 2.6 Aksum
00:36:32 2.7 West Africa
00:38:51 2.8 Bantu expansion
00:40:17 3 Medieval and Early Modern (6th to 18th centuries)
00:40:29 3.1 Sao civilization
00:41:29 3.2 Kanem Empire
00:43:26 3.3 Bornu Empire
00:45:53 3.4 Shilluk Kingdom
00:46:33 3.5 Baguirmi Kingdom
00:47:03 3.6 Wadai Empire
00:47:54 3.7 Luba Empire
00:49:22 3.8 Lunda Empire
00:50:54 3.9 Kingdom of Kongo
00:53:48 3.10 Horn of Africa
00:53:57 3.10.1 Somalia
00:56:43 3.10.2 Ethiopia
00:58:37 3.11 North Africa
00:58:46 3.11.1 Maghreb
01:04:18 3.11.2 Nile Valley
01:04:26 3.11.2.1 Egypt
01:08:25 3.11.2.2 Sudan
01:08:32 3.11.3 Christian and Islamic Nubia
01:11:35 3.12 Southern Africa
01:12:15 3.12.1 Great Zimbabwe and Mapungubwe
01:15:47 3.12.2 Namibia
01:16:35 3.12.3 South Africa and Botswana
01:16:44 3.12.3.1 Sotho–Tswana
01:17:23 3.12.3.2 Nguni peoples
01:18:03 3.12.3.3 Khoisan and Afrikaaner
01:20:15 3.13 Southeast Africa
01:20:24 3.13.1 Prehistory
01:20:50 3.13.2 Swahili coast
01:23:42 3.13.3 Urewe
01:25:19 3.13.4 Madagascar and Merina
01:27:23 3.13.5 Lake Plateau states and empires
01:27:43 3.13.5.1 Kitara and Bunyoro
01:28:54 3.13.5.2 Buganda
01:29:53 3.13.5.3 Rwanda
01:31:05 3.13.5.4 Burundi
01:31:44 3.13.6 Maravi (Malawi)
01:32:41 3.14 West Africa
01:32:49 3.14.1 Sahelian empires & states
01:32:52 3.14.1.1 Ghana
01:34:41 3.14.1.2 Mali
01:38:08 3.14.1.3 Songhai
01:41:28 3.14.1.4 Sokoto Caliphate
01:42:55 3.14.2 Forest empires and states
01:43:04 3.14.2.1 Akan kingdoms and emergence of Asante Empire
01:47:03 3.14.2.2 Dahomey
01:48:42 3.14.2.3 Yoruba
01:51:15 3.14.2.4 Benin
01:52:59 3.14.2.5 Niger Delta and Igbo
01:54:24 4 19th century
01:54:33 4.1 Southern Africa
01:56:29 4.2 Nguniland
01:58:44 4.3 Voortrekkers
02:00:32 4.4 European trade, exploration and conquest
02:05:44 4.5 France versus Britain: the Fashoda crisis of 1898
02:06:45 4.6 European colonial territories
02:08:27 5 20th century
02:10:00 5.1 World War I
02:12:41 5.2 World War II: Political
02:16:46 5.2.1 French Africa
02:18:18 5.3 World War II: Military
02:20:42 5.4 Post-war Africa: decolonization
02:21:51 5.4.1 East Africa
02:22:33 5.4.2 North Africa
02:24:53 5.4.3 Southern Africa
02:25:45 5.4.4 West Africa
02:26:47 5.5 Historiography of British Africa
02:29:05 6 See also



Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago.

Learning by listening is a great way to:
- increases imagination and understanding
- improves your listening skills
- improves your own spoken accent
- learn while on the move
- reduce eye strain

Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone.

You can find other Wikipedia audio articles too at:
https://www.youtube.com/channe....l/UCuKfABj2eGyjH3ntP

You can upload your own Wikipedia articles through:
https://github.com/nodef/wikipedia-tts



"The only true wisdom is in knowing you know nothing."
- Socrates



SUMMARY
=======
The history of Africa begins with the emergence of hominids, archaic humans and – at least 200,000 years ago – anatomically modern humans (Homo sapiens), in East Africa, and continues unbroken into the present as a patchwork of diverse and politically developing nation states. The earliest known recorded history arose in the Kingdom of Kush, and later in Ancient Egypt, the Sahel, the Maghreb and the Horn of Africa.
Following the desertification of the Sahara, North African history became entwined with the Middle East and Southern Europe while the Bantu expansion swept from modern day Cameroon (West Africa) across much of the sub-Saharan continent in waves between around 1000 BC and 0 AD, creating a linguistic commonality across much of the central and Southern continent.
During the Middle Ages, Islam spread west from Arabia to Egypt, crossing the Maghreb and the Sahel. Some notable pre-colonial states and societies in Africa include the Ajuran Empire, D'mt, Adal Sultanate, Warsangali Sultanate, Kingdom of Nri, Nok culture, Mali Empire, Songhai Empire, Benin Empire, Oyo Empire, Ashanti Empire, Ghana Empire, Mossi Kingdoms, Mutapa Empire, Kingdom of Mapungubwe, Kingdom of Sine, Kingdom of Sennar, Kingdom of Saloum, Kingdom of Baol, Kingdom of Cayor, Kingdom of Zimbabwe ...

In this video , we look at how to derive the equation of motion of a simple pendulum using the concepts of calculus of variations

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⁣Project-based learning (PBL) or project-based instruction is an instructional approach designed to give students the opportunity to develop knowledge and skills through engaging projects set around challenges and problems they may face in the real world.

In this lecture , we look at how to deal with shortest distance problems usingEuler's differential Equation

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This video is about finding the square root of a surd by first converting it into a perfect square. i have applied the techniques on the example sqrt(3-2*sqrt(2))

In this lecture, we derive Euler's Differential Equation that will help us in our next lectures,. wish you the best as you watch this video

⁣Project-based learning is an instructional approach where students learn by actively engaging in real-world projects. These projects are typically interdisciplinary and require students to apply their knowledge and skills to solve a problem or complete a task.

In this video , we shall learn how to form PDEs by eliminating arbitrary constants from the equations, watch the video till the end, since different examples considered contain different numbers of arbitrary constants and different numbers of variables. Understanding this part will help you in the next lectures. Enjoy the video as you learn.

⁣What is PBL?
Project Based Learning (PBL) is a teaching method in which students learn by actively engaging in real-world and personally meaningful projects.
In Project Based Learning, teachers make learning come alive for students.
Students work on a project over an extended period of time – from a week up to a term– that engages them in solving a real-world problem or answering a complex question. They demonstrate their knowledge and skills by creating a public product or presentation for a real audience.
As a result, students develop deep content knowledge as well as critical thinking, collaboration, creativity, and communication skills. Project Based Learning unleashes a contagious, creative energy among students and teachers.


And in case you were looking for a more formal definition...


Project Based Learning is a teaching method in which students gain knowledge and skills by working for an extended period of time to investigate and respond to an authentic, engaging, and complex question, problem, or challenge.


Watch Project Based Learning in Action


These 7-10 minute videos show the Gold Standard PBL model in action, capturing the nuts and bolts of a PBL unit from beginning to end.

⁣Project-based learning in chemistry teaching is an instructional approach where students actively engage in real-world, hands-on projects that require them to apply their knowledge and skills in chemistry. Instead of traditional lecture-based teaching, project-based learning focuses on student-centered learning, where students take ownership of their learning and work collaboratively to solve problems or complete projects.

In chemistry, project-based learning can involve various activities such as conducting experiments, designing and building models, analyzing data, researching and presenting findings, and solving chemical problems. These projects are often interdisciplinary, integrating concepts from other subjects like physics, biology, and environmental science.

The goal of project-based learning in chemistry teaching is to provide students with a deeper understanding of chemical concepts and principles, as well as develop their critical thinking, problem-solving, communication, and collaboration skills. By working on authentic, real-world projects, students can see the relevance and application of chemistry in their everyday lives, making the learning experience more meaningful and engaging.

Some examples of project-based learning in chemistry teaching include:

1. Designing and conducting an experiment to investigate the effect of different variables on a chemical reaction.
2. Creating a model or simulation to understand the behavior of atoms and molecules.
3. Researching and presenting a project on the environmental impact of a specific chemical or chemical process.
4. Collaborating with peers to solve a chemical problem or design a solution to a real-world issue.
5. Analyzing and interpreting data from a chemical analysis or experiment to draw conclusions and make predictions.

Overall, project-based learning in chemistry teaching promotes active learning, critical thinking, and problem-solving skills, while also fostering creativity, collaboration, and communication among students.

⁣Topology is a branch of mathematics that deals with the properties and structures of spaces. In university mathematics, topology is typically studied as a subfield of analysis or geometry.

In topology, the focus is on studying the properties of spaces that are preserved under continuous transformations, such as stretching, bending, and twisting. The main objects of study in topology are topological spaces, which are sets equipped with a collection of subsets called open sets. These open sets satisfy certain axioms, such as being closed under finite intersections and arbitrary unions.

Topology is applied in various areas of mathematics, including analysis, geometry, algebra, and differential equations. It provides a framework for studying the properties of functions, continuity, convergence, compactness, connectedness, and many other concepts that are fundamental in mathematical analysis. In geometry, topology is used to study the properties of shapes and surfaces, such as their curvature, dimensionality, and topological invariants.

Topology also has applications in other fields, such as physics, computer science, and engineering. For example, in physics, topology is used to study the properties of space-time and the behavior of particles. In computer science, topology is applied in areas such as network analysis, data visualization, and algorithm design. In engineering, topology optimization is used to find the optimal layout or configuration of structures or systems to achieve certain performance criteria.

Overall, topology provides a powerful mathematical framework for studying the properties and structures of spaces, and its applications extend to various areas of mathematics and beyond.

Watch Trace & Julia defy gravity in this episode of DNews Labs!

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Episode 1: Why Black Africans Were Historically Viewed As A Threat ?

The view that Black Africans were historically viewed as a threat is a complex issue with multiple factors. One significant factor is the history of colonialism and the European conquest of Africa. European powers colonised Africa for its natural resources, and the perception of Africans as "primitive" or "uncivilised" was used to justify the exploitation and subjugation of African peoples.

Another factor is the transatlantic slave trade, which saw millions of Africans forcibly taken from their homes and transported to the Americas as slaves. The dehumanization of Africans as property and the violent treatment they received from their slave owners further reinforced the perception of Africans as a threat.

Additionally, racism and prejudice against Black people have been pervasive throughout history and continue to be a problem today. This bias has often led to the assumption that Black people are inherently violent or dangerous, perpetuating the stereotype of the "angry Black man" or "aggressive Black woman."

In short, the perception of Black Africans as a threat has deep roots in history, including colonialism, slavery, and ongoing prejudice and discrimination. It is a complex issue that requires a nuanced understanding of history and culture to fully grasp.
============================
Let's come together in reasonable dialogue to honor our ancestors and reclaim the world through an African lens. Join me as we delve into African history, culture, and worldview to better understand their relevance to our lives today. By sharing our thoughts and knowledge, we can pave the way for a new culture of awareness and reclaim our story. As the African Diaspora saying goes, "I am because we are, and we are because I am."

#blackscreenstatus #blackamerica #slavery

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In this tutorial we shall guide you on how to get started with EXCEL (NEW TRICKS 2023)

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some people feel no interest of going back to Africa for some reasons

__________
But i think home will be home forever

I don't know what you think
drop your comment
down please

Redox reaction is the theory behind the Daniell cell. During the reaction cycle, electrons can be transferred as useful electrical current from the corroding zinc to the copper through an electrically conducting direction. The theory employed in the battery & Volta battery of daniell is the same.

Electrochemcial Cell Demonstration Voltaic Cell: Zinc/Copper E° = 1.10 V. A standard cell comprising of two half-cells: zinc metal electrode in 1.0 M ZnSO​4 solution, a copper metal electrode in a 1.0 M CuSO4 solution, and a connecting salt bridge. The electrodes are connected to a voltmeter.

The Daniell cell is a type of electrochemical cell invented in 1836 by John Frederic Daniell, a British chemist and meteorologist, and consists of a copper pot filled with a copper (II) sulfate solution, in which is immersed an unglazed earthenware container filled with sulfuric acid and a zinc electrode.