# Ch 10: AP Physics C: Laws of Gravitation

### About This Chapter

## AP Physics C: Laws of Gravitation - Chapter Summary

The brief videos in this chapter explore gravitation. Our expert instructors are here to help you get a handle on the laws of Newton and Kepler, along with how they predict the motion and force of moving objects. By the end of these lessons, you'll be proficient in doing the following:

- Describe how Kepler's laws show the movement of celestial bodies
- Apply Newton's law of gravitation
- Explain the ways to calculate the gravitational attraction between objects
- Work with the formula for gravitational potential energy
- Explore work as an integral
- Summarize elliptical orbits and their eccentricity
- Describe speed, velocity, acceleration and centripetal force

### 1. Speed and Velocity: Concepts and Formulas

Did you know that an object's speed and velocity may not be the same? This lesson describes the concepts of speed and velocity relating to objects in motion. We'll look at a specific example to help learn how to calculate both speed and velocity.

### 2. What is Acceleration? - Definition and Formula

This lesson describes the difference between speed, velocity and acceleration. Examples are used to help you understand the concept of acceleration and learn to calculate acceleration with a mathematical formula.

### 3. Centripetal Force: Definition, Examples & Problems

After watching this video, you should be able to explain what centripetal force is, identify the centripetal force in a particular situation, and solve problems using the centripetal force equation. A short quiz will follow.

### 4. Kepler's Three Laws of Planetary Motion

Find out about the interesting life and major contributions of Johannes Kepler. This lesson will also teach you how to find out how long it takes a planet to revolve around the sun!

### 5. Newton's Law of Gravitation: Definition & Examples

This lesson explains how gravity works mathematically and teaches you how to use Newton's Law of Gravitation to solve problems. A short quiz will follow.

### 6. Gravitational Attraction of Extended Bodies

After watching this lesson, you will be able to explain what an extended body is, understand the derivation for the force of gravity between a point charge and a long, thin bar and solve problems using the result of that derivation.

### 7. Gravitational Potential Energy: Definition, Formula & Examples

In this lesson, you will learn what gravitational potential is, the equation we use to calculate it, and how to use that equation. We'll look at some real-life examples so you can see how it works. A short quiz will follow.

### 8. Work as an Integral

After watching this video, you will be able to solve calculus problems involving work and explain how that relates to the area under a force-displacement graph. A short quiz will follow.

### 9. Elliptical Orbits: Periods & Speeds

After watching this lesson, you will be able to explain what an elliptical orbit is and calculate the period and speed of an object in an elliptical orbit, if given enough information. A short quiz will follow.

### 10. Eccentricity & Orbits of Planets

After watching this lesson, you should be able to explain what eccentricity is and calculate the eccentricity of an orbit given relevant distance measurements. A short quiz will follow.

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### Other Chapters

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: Newton's Third Law of Motion
- AP Physics C: Work, Energy, & Power
- AP Physics C: Linear Momentum
- AP Physics C: Rotational Motion
- AP Physics C: Oscillations
- AP Physics C - Mechanics Flashcards