CK-12 Physical Science - For Middle School

(Marvins-Underground-K-12) #1

http://www.ck12.org Chapter 23. Electricity


Apply Concepts



  1. Create an original binary code using the digits 0 and 1, and use it to encode a short message. Explain how
    your code is like the digital electronic code used in a computer.


Think Critically



  1. Compare and contrast n-type and p-type semiconductors. Explain why both types of semiconductors must be
    used together in electronic components.


Points to Consider


In this chapter, you learned that electric charge is a physical property of some types of matter. In the chapter
"Magnetism," you will read about another physical property of some types of matter —magnetism.



  • If you’ve ever used a magnet, you already know something about magnetism. How would you define mag-
    netism or explain it to someone who has no experience with magnets?

  • Earth is considered to be a giant magnet. Do you know why?


ForTable23.1,



ForTable23.2,


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