Unit 3 · Work, Energy, and Power

Chapter 3.1

Kinetic Energy and Work

A sideways push can shove as hard as it likes and never change an object's speed. Only the part of a force along the motion trades energy.

lesson 10 of 18

By the end

  1. 01Compute kinetic energy and explain why observers in different frames measure different values
  2. 02Compute work by a constant force from its parallel component, and as the area under a force–displacement graph
  3. 03Apply the work–energy theorem
  4. 04Classify forces as conservative or nonconservative, and account for the energy friction turns into thermal energy and sound

In unit 3

  1. 3.1Kinetic Energy and Work
  2. 3.2Potential Energy
  3. 3.3Conservation of Energy and Power
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