About This Chapter
Electricity, Magnetism, Light & Sound - Chapter Summary
You'll find a series of lessons on light, sound, electricity and magnetism in this chapter, which is accessible 24 hours a day. Use your tablet, smartphone or computer to watch our short videos on electric and magnetic attraction, and more. After finishing this chapter, you should be able to do the following:
- Define electric charge and force
- Explain magnetic force and define poles and dipoles
- Outline the properties of light
- Discuss the definition of sound, including pitch and volume
Work at your own pace and review as few or as many of these lessons as needed to feel fully prepared for your exam. The lesson quizzes and chapter test are a handy way to check your comprehension and identify any areas that need more study. Our subject experts are available to answer your questions if you submit them through the Dashboard.
1. Electric Charge and Force: Definition, Repulsion & Attraction
Have you ever wondered what electricity is and where it comes from? Have you ever been zapped by static electricity and wondered how it got there? We'll answer all of these questions in this lesson on electric charge and force!
2. Magnetic Force: Definition, Poles & Dipoles
You're probably familiar with magnets, but have you ever stopped to consider how they work? In this lesson, we'll look at the root of magnetism and some of the fundamental properties of magnets.
3. What is Light?
This lesson will define and describe what light is from both technical and more common-use perspectives, discuss what the different kinds of light are, and explain why it's called radiation.
4. Sound: Definition, Influences, Pitch & Volume
What is a sound? Learn about sounds and what influences how we perceive them, including pitch and volume. Test your understanding of sound features and finish off with a quiz.
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