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Ch 4: AP Physics C: Newton's First Law of Motion

About This Chapter

Let us help you review the difference between balanced and unbalanced forces. These informative short videos lessons can help you prepare for of questions on Newton's First Law of Motion on the AP Physics C - Mechanics exam.

AP Physics C: Newton's First Law of Motion - Chapter Summary

In this chapter, our instructors can help you review the physics concepts of force and motion that could appear on the AP Physics C - Mechanics test. You can explore calculations, situations, and diagrams to gain a deeper understanding of Newton's First Law of Motion. After completion of the chapter, you should be able to:

  • Understand the principles of Newton's First Law of Motion
  • Describe the differences between mass and inertia
  • List the calculations for mass and weight
  • Define a state of motion and how velocity affects the state
  • Identify types of forces, including balanced and unbalanced forces
  • Determine the net force of an object
  • Use free-body diagrams to explain magnitude and direction

Our experienced instructors use a wide variety of tools to help you boost your understanding of laws of motion. There are self-assessment quizzes you can take after viewing the after our short, engaging video lessons to test you on the information you have learned and make sure you are ready for the AP Physics C - Mechanics exam. Lesson transcripts and video tags are also available so you can jump to the main points of the videos to help you access the information quickly.

8 Lessons in Chapter 4: AP Physics C: Newton's First Law of Motion
Test your knowledge with a 30-question chapter practice test
Newton's First Law of Motion: Examples of the Effect of Force on Motion

1. Newton's First Law of Motion: Examples of the Effect of Force on Motion

This lesson describes Newton's first law of motion, also known as the law of inertia. The interaction between force and motion is explained. Several examples are used to discuss the implications of this law on earth and in space.

Distinguishing Between Inertia and Mass

2. Distinguishing Between Inertia and Mass

Mass and inertia are both related to the amount of matter an object has, but they aren't exactly the same thing. In this video lesson, you'll see how mass affects an object's inertia, which in turn affects that object's motion.

Mass and Weight: Differences and Calculations

3. Mass and Weight: Differences and Calculations

We often talk about mass and weight as if they are the same. While they are proportional to each other, they are not, in fact, the same. In this video lesson, you will learn to distinguish between the two, as well as convert one to the other.

State of Motion and Velocity

4. State of Motion and Velocity

An object's state of motion describes how it is moving. But there are many ways we can describe motion, such as speed and velocity. This motion is relative to other objects around it, such as the earth, the sun, and even other stars in our galaxy.

Force: Definition and Types

5. Force: Definition and Types

Force is everywhere and it comes in a variety of sizes, directions, and types. In this video lesson, you'll identify force as well the different types of force that objects may experience.

Forces: Balanced and Unbalanced

6. Forces: Balanced and Unbalanced

Forces are needed to start or stop an object's motion, but can also be involved when an object is at rest or already traveling at constant velocity. In this video lesson, you'll identify the difference between balanced and unbalanced forces, understanding how they affect the movement of objects.

Free-Body Diagrams

7. Free-Body Diagrams

Forces that act on an object can be drawn through special vector diagrams called free-body diagrams. In this video lesson you'll identify how to correctly represent forces in a free-body diagram through vector arrows and force labels.

Net Force: Definition and Calculations

8. Net Force: Definition and Calculations

Because forces are vectors, we can't simply add them up to get a total amount of force on an object. Instead, we calculate the net force, which is important to understand because it tells us about an object's state of motion.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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