Ch 8: Gravitation Principles

About This Chapter

These lessons on gravitation principles can help you with a class project, homework assignment, or test preparation. You'll review Kepler's three laws of planetary motion, gravitational potential energy, satellites, and more.

Gravitation Principles - Chapter Summary

While going through these lessons, you'll deepen your understanding of gravitation principles. Some of the topics covered include the law of universal gravitation, escape velocity, and use of formulas to calculate gravitational potential. You'll also learn about the life and contributions of Johannes Kepler. After reviewing the lessons, you should be ready to:

  • Explain Kepler's three laws of planetary motion
  • Define and explain the importance of the law of universal gravitation
  • Provide an example of the acceleration of gravity
  • Calculate gravitational potential energy
  • Explain the concepts of circular velocity and escape velocity
  • Explore the difference between artificial and natural satellites

As you review the short lessons, you should find the material easy to grasp. If necessary, you can use the 'Help' feature to submit questions to instructors. Video timelines let you guide the learning process and review only the topics you need to review. A brief quiz is available for each lesson to test your knowledge.

7 Lessons in Chapter 8: Gravitation Principles
Test your knowledge with a 30-question chapter practice test
Kepler's Three Laws of Planetary Motion

1. 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!

The Law of Universal Gravitation: Definition, Importance & Examples

2. The Law of Universal Gravitation: Definition, Importance & Examples

Gravity is what pulls us toward Earth, but it's also what pulls Earth toward us. This is explained by the law of universal gravitation, which describes how all objects in the universe have this important force between them.

The Acceleration of Gravity: Definition & Formula

3. The Acceleration of Gravity: Definition & Formula

In this lesson, we will introduce the acceleration due to gravity. Objects in free fall are one of the few real world examples of straight line motion with constant acceleration, so they are commonly used when learning kinematics.

Gravitational Potential Energy: Definition, Formula & Examples

4. 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.

Calculating Gravitational Potential Energy

5. Calculating Gravitational Potential Energy

An object can have gravitational potential energy due to its location in a gravitational field. In this lesson, learn how to calculate the gravitational potential energy of objects in different situations.

Circular Velocity & Escape Velocity

6. Circular Velocity & Escape Velocity

This lesson will describe the concepts of circular velocity, escape velocity, open orbits, closed orbits, and geosynchronous satellites. It will provide the equations necessary for you to be able to calculate out circular and escape velocity as well.

Satellite: Definition & Uses

7. Satellite: Definition & Uses

In this lesson, you will learn what a satellite is, the distinction between natural and artificial satellites, and some of their practical uses. A short quiz will follow.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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