Skip Navigation

Chapter 5: Energy

Difficulty Level: Basic Created by: CK-12
Turn In


The surfer in this photo is dwarfed by the immense wave he’s riding, yet he’s managing to use the incredible energy of the wave for a thrilling ride. Ocean waves like this one carry a huge amount of energy. Do you know what energy is? Can you identify other forms of energy besides ocean waves? In this unit, you’ll learn a lot about energy, including how it makes modern life possible—even if you never ride a surfboard!

Chapter Outline

Chapter Summary


This unit introduces energy and energy resources. Different forms of energy—including thermal and sound energy—are described. The unit also explains how energy travels in waves, how light energy behaves, and how we use light to see. Electricity and magnetism, and the relationship between them, are explored as well.

Image Attributions

Show Hide Details
Difficulty Level:
7 , 8 , 9
Date Created:
Nov 01, 2012
Last Modified:
Jan 14, 2016
Files can only be attached to the latest version of chapter
Please wait...
Please wait...
Image Detail
Sizes: Medium | Original