Ch 1: Circular Motion & Gravitation

About This Chapter

Reinforce your understanding of circular motion and gravitation using the short, simple lessons in this chapter. These lessons and related quizzes can be used as a supplement to class materials or to help you prepare for exams.

Circular Motion and Gravitation - Chapter Summary

What is centripetal force? Angular velocity? Gravitational field? These are the types of questions you can expect to explore in this chapter. You'll look at formulas used to calculate acceleration, speed and velocity, as well as equations used to solve problems involving uniform circular motion. Once you're finished with this chapter, you should be able to:

  • Calculate speed and velocity
  • Understand three formulas used to calculate angular velocity
  • Define and calculate acceleration
  • Explain Newton's law of gravitation
  • Describe gravitational force and gravitational attraction of extended bodies
  • Provide details about Cavendish's gravity experiment
  • Discuss specifics about a gravitational field
  • Create graphs for velocity and time of an object in motion

Each lesson can be viewed as a short video or a written transcript. Lessons are easy to access 24/7 from your smartphone, tablet, laptop or desktop, making it simple and convenient to complete your study of this chapter. Take the self-assessment quizzes to help you determine your readiness in moving from one lesson to the next.

11 Lessons in Chapter 1: Circular Motion & Gravitation
Test your knowledge with a 30-question chapter practice test
Uniform Circular Motion: Definition & Mathematics

1. Uniform Circular Motion: Definition & Mathematics

After watching this lesson, you will be able to explain what uniform circular motion is, in terms of both acceleration and forces. You will also be able to use equations for centripetal force and acceleration to solve problems. A short quiz will follow.

Speed and Velocity: Concepts and Formulas

2. 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.

Angular Velocity: Definition, Formula & Examples

3. Angular Velocity: Definition, Formula & Examples

Angular velocity applies to objects that move along a circular path. We will explore the definition of angular velocity and learn three different formulas we can use to calculate this type of velocity.

What is Acceleration? - Definition and Formula

4. 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.

Centripetal Force: Definition, Examples & Problems

5. 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.

Newton's Law of Gravitation: Definition & Examples

6. 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.

Gravitational Force: Definition, Equation & Examples

7. Gravitational Force: Definition, Equation & Examples

You probably have an idea of what gravity is, but did you know that you, right now, are actually pulling on every other object in the universe? Find out more about the gravitational force and learn an equation to calculate its pull on other objects.

Gravitational Attraction of Extended Bodies

8. 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.

Cavendish's Gravity Experiment & the Value of G

9. Cavendish's Gravity Experiment & the Value of G

After watching this lesson, you will be able to explain what the gravitational constant is and explain how the Cavendish Experiment can be used to figure out the value of big-G. A short quiz will follow.

Gravitational Field: Definition & Formula

10. Gravitational Field: Definition & Formula

This lesson defines what a gravitational field is and some practical examples encountered in the real world. We also develop the equations governing the gravitational field and explain what the units of measurement mean.

Graphing the Motion of Objects: Physics Lab

11. Graphing the Motion of Objects: Physics Lab

After watching this lesson, you will be able to measure the motion of an object and plot position-time and velocity-time graphs based on your data. 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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