Ch 13: Energy & Motion in Physics

About This Chapter

Review your understanding of how to use calculations to find different types of energy and motion in physics. These lessons and quizzes can be used to build confidence on the topic before an exam or homework assignment.

Energy & Motion in Physics - Chapter Summary

Our instructors explain the concept of work as it's defined in physics and how it relates to variable force. You will be introduced to Hooke's Law and how to use its equation. The concept of mechanical energy and how it is transferred and converted will be covered, along with gravitational potential energy and elastic potential energy.

As you work through the lessons, you'll review both inelastic and elastic collisions and how they relate to momentum. Tensive and compressive stress and strain, plus their related equations, will also be presented. You will learn how to calculate energy efficiency and define impulse. The law of conservation of momentum and the equation used to solve problems using it will also be introduced. After you have completed these lessons, you should be able to:

  • Calculate work using an equation and a graph
  • Solve problems using Hooke's Law
  • Explain how mechanical energy is converted and transferred
  • Differentiate between kinetic and potential energy
  • Use the equations for gravitational potential energy and elastic potential energy
  • Compare tensile stress and strain to compressive stress and strain
  • Relate impulse and momentum
  • Follow the equation for the conservation of momentum when solving problems

Our lessons and quizzes are designed by professional instructors, ensuring your study experience is easy and engaging. Before or after you've reviewed the lessons, take the quizzes to gauge your knowledge of the topic. If you have questions, contact one of our instructors for assistance. These mobile-friendly lessons and quizzes are available for you to review at any time, seven days a week.

11 Lessons in Chapter 13: Energy & Motion in Physics
Test your knowledge with a 30-question chapter practice test
Overview of Work & Work by Variable Force

1. Overview of Work & Work by Variable Force

After completing this lesson, you will be able to explain what work is, and how to calculate work using the equation, and a force-distance graph. A short quiz will follow.

Hooke's Law & the Spring Constant: Definition & Equation

2. Hooke's Law & the Spring Constant: Definition & Equation

After watching this video, you will be able to explain what Hooke's Law is and use the equation for Hooke's Law to solve problems. A short quiz will follow.

Conservation of Mechanical Energy

3. Conservation of Mechanical Energy

Energy comes in many forms and for any system can never be created or destroyed. This holds true for mechanical energy, which also obeys this law of conservation of energy. In this video lesson, you'll explore how mechanical energy is converted or transferred between forms and objects.

Kinetic Energy to Potential Energy: Relationship in Different Energy Types

4. Kinetic Energy to Potential Energy: Relationship in Different Energy Types

This video defines and describes kinetic and potential energy. You'll learn how different types of energy can be classified as potential and kinetic. You'll also find out how kinetic and potential energy are transformed.

Gravitational Potential Energy: Definition, Formula & Examples

5. 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.

Elastic Potential Energy: Definition, Formula & Examples

6. Elastic Potential Energy: Definition, Formula & Examples

Discover what elastic potential energy is and the types of objects that can have it. Then learn how we find the formula for elastic potential energy using a spring.

Elastic and Inelastic Collisions: Difference and Principles

7. Elastic and Inelastic Collisions: Difference and Principles

When objects come in contact with each other, a collision occurs. In this lesson, you'll learn about the two types of collisions as well as how momentum is conserved in each.

Tensile and Compressive Stress and Strain Equations

8. Tensile and Compressive Stress and Strain Equations

Discover what tensile and compressive stress and strain are, and how they relate to each other. Then find out how we can use stress and strain to learn more about a material's elastic properties.

Calculating Energy Efficiency

9. Calculating Energy Efficiency

In science class, energy efficiency is not so much about using an LED light versus an incandescent or fluorescent light. No, it's about how much energy you get from something versus the amount of energy you put in.

Impulse: Definition, Equation, Calculation & Examples

10. Impulse: Definition, Equation, Calculation & Examples

In this lesson you will learn about the concept of impulse and how you can apply it to a variety of interesting situations. You will learn about the relationship between impulse and momentum and how to calculate impulse through a variety of examples.

The Law of Conservation of Momentum

11. The Law of Conservation of Momentum

After completing this lesson, you will be able to explain what conservation of momentum is and use the equation for conservation of momentum to solve problems. 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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