About This Chapter
AP Physics C: Newton's Third Law of Motion - Chapter Summary
Use the lessons in this chapter to review how to identify and describe key forces and how they relate to Newton's Third Law of Motion. These lessons on friction, actions, and reactions can help you prepare for questions on the AP Physics Exam related to these concepts. When you have completed this chapter, you should be able to:
- List examples relationship between forces
- Explain how mass, weight, and gravity affect the motion of an object
- Identify action and reaction forces between objects
- Describe normal force
- Categorize friction examples by their types
- Interpret inclined planes and how they affect the forces on an object
The lessons in this chapter are presented through short, engaging video lessons taught by professional instructors. You can easily review specific ideas in the videos using the tagged points in the Timeline feature. There are also transcripts of the videos and self-assessment quizzes available with each lesson that you can use to make sure you are ready for the AP Physics C- Mechanics exam. Your progress through the chapter and course is recorded and can be viewed from your Dashboard.
1. Newton's Third Law of Motion: Examples of the Relationship Between Two Forces
This lesson describes Newton's third law of motion. Examples are provided to illustrate how interacting objects experience forces. The lesson explains how objects accelerate as a result of force. Applications of Newton's third law are illustrated in nature, machines, and space.
2. Newton's Laws and Weight, Mass & Gravity
Did you know that mass and weight are not the same? This lesson describes the difference between the two as well as the effect of gravity on weight. Examples are used to teach you how to calculate weight based on mass and acceleration of gravity.
3. Identifying Action and Reaction Force Pairs
Good things often come in pairs, and forces are no exception. In this lesson you'll explore Newton's second and third laws of motion to understand how action and reaction pairs affect objects interacting with each other.
4. The Normal Force: Definition and Examples
The normal force is also called the contact force because it only exists when objects are touching. In this lesson, we will investigate what the normal force is and how to calculate it on flat and inclined surfaces.
5. Friction: Definition and Types
You experience friction all the time, and you should be glad you do! Friction helps keep stationary objects in place as well as slow moving objects down as they slide across a surface. This lesson identifies what friction is and explains the two ways we find this force on earth.
6. Inclined Planes in Physics: Definition, Facts, and Examples
If an object is not horizontal to the ground, it may be on an inclined plane. We need to adjust both the calculations and the free-body diagram when determining the net force on an object on an inclined plane. Learn how in this lesson.
Earning College Credit
Did you know… We have over 200 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.
To learn more, visit our Earning Credit Page
Transferring credit to the school of your choice
Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.
Other chapters within the AP Physics C - Mechanics: Exam Prep course
- AP Physics C: Vectors
- AP Physics C: Kinematics
- AP Physics C: Acceleration, Velocity, & Gravity
- AP Physics C: Newton's First Law of Motion
- AP Physics C: Newton's Second Law of Motion
- AP Physics C: Work, Energy, & Power
- AP Physics C: Linear Momentum
- AP Physics C: Rotational Motion
- AP Physics C: Laws of Gravitation
- AP Physics C: Oscillations
- AP Physics C - Mechanics Flashcards