Energy does not change, and that means that it is constant. When one object applies force to another, the energy becomes and equal and opposite reaction. Learn more about Newton's third law of motion with this cartoon animation from StudyJams. A short, self-checking quiz is also included with this link.

Intuition behind Newton's Third Law of Motion. This video, which is suitable for high school students, starts with a black screen because the instructor, in his conversational tone, uses it as a 'chalkboard.' (09:19)

Learn about Newton’s Third Law of Motion. Several examples of Newton’s Third Law Force Pairs are demonstrated and discussed. We even travel to Dandong, China.

Content Times:
0:10 Newton’s Third Law
0:47 Ball and Head Force Pair
1:49 At the Ann Arbor Hands-On Museum
2:35 Why I don’t like the Action/Reaction definition
3:30 Hammer and Nail Force Pair
4:20 Mr.p and Wall Force Pair
4:36 Kevin Zhang and The Great Wall Force Pair
5:23 The Great Wall Location Shots
5:36 Filming the intro

Many thanks to Kevin Zhang, today's Flipping Physics Correspondent in China and to Ari Morris for letting me use a video of my kids at The Ann Arbor Hands-On Museum from 2007.

Proof that the Force Normal and the Force of Gravity are not a Newton’s Third Law Force Pair.

Content Times:
0:26 Drawing the Free Body Diagram
1:02 Not a Newton’s Third Law Force Pair
1:37 The Force Normal Force Pair
1:55 The Force of Gravity Force Pair

From pbslearningmedia.org, produced by WGBH Educational Foundation

The sensation of "weightlessness" that orbiting astronauts experience on their missions would seem to make their tasks almost effortless. However, as Newton's third law of motion suggests, working in space can be physically demanding. This video segment, adapted from NOVA, illustrates the significance of Newton's law to space-walking astronauts and the engineers who design their spacecrafts. (04:50)

From YouTube, produced by National Science Foundation & NBC Learn

"Science of NFL Football" is a 10-part video series funded by the National Science Foundation and produced in partnership with the National Football League. In this segment, NBC's Lester Holt breaks down Isaac Newton's Third Law of Motion and how energy transfers between football players who collide during a game. Professors Tony Schmitz of the University of Florida and Jim Gates of the University of Maryland explain why momentum can keep a player moving or stop them in their tracks. (04:12)

This video shows the three laws of motion developed by Sir Isaac Newton and is done with excellent graphics.
The first law of motion, inertia, is when an object will not move or else move in a straight line unless an unbalanced force acts on it. The second law of motion states that force is the product of mass and acceleration; acceleration fo an object depends on the mass and magnitude of the force. (force=massxacceleration) The third law of motion is the law of action and reaction. In every action there is an equal and opposite action such as in rockets (04:24).

From YouTube, produced by European Space Agency Science

This is the third part of this series. (Part 3/3) Good visual explanation of Newton's Third Law in space. Applicable to middle or high school students. (05:59)

Learn about Newton’s First Law of Motion with two examples shown. Plus, I snuck in some free body diagrams and subtle hints at Newton’s Second and Third Laws as well. Thank you so much to Mrs. Zeller for being a Flipping Physics Correspondent!

Content Times:
0:08 Newton’s First Law of Motion
0:34 1st Example: Mrs. Zeller presents an object at rest
1:08 What does it mean “No net external force acting on the rock”?
2:20 2nd Example: An object in motion
3:21 What does “constant velocity” mean?
4:00 Also called the Law of Inertia
4:22 The two most common mistakes students make

Calculus based review of Newton’s three laws, basic forces in dynamics such as the force of gravity, force normal, force of tension, force applied, force of friction, free body diagrams, translational equilibrium, the drag or resistive force and terminal velocity. For the calculus based AP Physics C mechanics exam.
Want Lecture Notes?

Content Times:
0:18 Newton’s First Law
1:30 Newton’s Second Law
1:55 Newton’s Third Law
2:29 Force of Gravity
3:36 Force Normal
3:58 Force of Tension
4:24 Force Applied
4:33 Force of Friction
5:46 Static Friction
6:17 Kinetic Friction
6:33 The Coefficient of Friction
7:26 Free Body Diagrams
10:41 Translational equilibrium
11:41 Drag Force or Resistive Force
13:25 Terminal Velocity

In order to use Newton’s Second Law, you need to correctly draw the Free Body Diagram. This problem explains a common mistake students make involving the force applied. We also review how to find acceleration on a velocity as a function of time graph.

Content Times:
0:22 The problem
0:54 Listing our known values
1:51 Drawing the Free Body Diagram
2:17 A common mistake in our Free Body Diagram
3:32 Solving the problem
4:14 Another common mistake
5:07 Why is the acceleration positive?

Here's an old one from Bill Nye. He uses roller skate cars and water balloon passengers to talk about momentum, potential energy, kinetic energy, and impulse (07:29).

For every action there is an equal and opposite reaction. When we sit on a chair, our body exerts a downward force on the chair. The chair also exerts an upward force on the body. If the chair would not have exerted a force, the chair would collapse and we would never be able to sit on a chair. (04:38)

A four-minute introduction of Newton's Laws of Motion. It is well done with easy to understand explanations. A great video to introduce this topic even for younger students. (04:20)

This four-minute video is about Isaac Newton, the scientists who is said to be the smartest one to have ever lived. Learn about gravity and Newton's analysis on the moon. His laws explain almost everything and is easy for the students to fall. (04:35)

Professor Lewin discusses Newton's Laws. He demonstrates the 3rd law by using a Heros Engine. He also shows how anybody can "shake" the earth by throwing a ball up in the air (49:16).

Acceleration is a change in velocity. That means acceleration can be a change in motion or speed. Acceleration can be thought of as an object's change in velocity over time. Learn more about Newton's Second Law of Motion with this cartoon animation from StudyJams. A short, self-checking quiz is also included with this link.

The Protestant Reformation encourages both religious and scientific thought. This is how Newton pioneered many scientific advancements. This is a good video of a unique man and his accomplishments and scientific insights. Very worthwhile for students. (02:47)

This NASA video segment explores how Newton's second law of motion applies to aerospace. Viewers watch an instructor at NASA's National Test Pilot School as he defines the second law and demonstrates how to calculate a person's mass using the law. There is also a discussion about how people experience different g forces at the top and bottom of a roller coaster hill. Footage of the instructor in a fighter jet illustrates what it means to pull 2 and 4 g.