# Ch 7: Newton's Law of Gravitation

### About This Chapter

## Newton's Law of Gravitation - Chapter Summary

The lessons in this chapter define and explain Newton's law of gravitation, as well as topics related to air resistance, acceleration, circular motion and centripetal force. To help you make sure you've fully grasped these topics, we've included interactive lesson quizzes and a comprehensive chapter exam. The chapter can be studied on any device that has an Internet connection, and you can submit questions to our expert physics instructors if you need any help understanding the material. Upon completion of this chapter, you should be able to:

- Explain Newton's law of gravitation
- Understand how air resistance affects an object's velocity
- Define the acceleration of gravity
- Describe uniform circular motion and projectile motion
- Solve problems that involve centripetal force

### 1. 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.

### 2. Calculating Earth's Gravity Using Newton's Law of Gravitation

Gravity is more or less constant on Earth. There are two ways we can derive the gravitational acceleration constant on Earth. In this lesson, we will look at the two ways and show how they are the same thing.

### 3. Air Resistance & Free Fall Physics: Practice Problems

Learn what we mean by free fall, and how air resistance affects objects falling through the air. Then we'll work though a couple practice problems to see how objects act while they are in free fall.

### 4. Practice Applying Free Fall & Air Resistance Formulas

In this lesson, we'll go through some practice problems to determine the velocity and acceleration of an object in free fall and when applying air resistance.

### 5. What is Terminal Velocity? - Definition, Formula, Calculation & Examples

In this lesson, we will learn about terminal velocity and why it is better to jump out of a plane with a parachute than without one. We will explore why objects fall at different speeds and how to calculate the maximum speed of a falling object.

### 6. Kinematic Equations List: Calculating Motion

After watching this video, you will be able to explain what kinematics is, list the five most important kinematics equations, and use them to solve problems. A short quiz will follow.

### 7. Practice Applying Projectile Motion Formulas

In this lesson, you'll have a chance to practice real-world applications of projectile motion formulas. You'll learn how to approach these problems and we'll walk you through solving them.

### 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

Other chapters within the Physics 111: Physics I course

- Math Basics for Physics
- The Scientific Model
- Using Vectors in Physics
- Displacement, Velocity & Acceleration
- Understanding Kinematics in Physics
- Basics of Newton's Laws of Motion
- Understanding Work, Energy & Power
- Linear Momentum
- Overview of Rotational Motion
- Overview of Oscillations in Physics
- Overview of Waves in Physics
- Overview of Sound in Physics
- Overview of Light in Physics
- Overview of Fluids in Physics
- Studying for Physics 111