Georgia Science Grade 8

Chapter 22: Electronics and Computers

CRCT Practice

1
What kinds of materials are used to make solid-state components?
A)semiconductors
B)superconductors
C)conductors
D)insulators
2
What is the total number of combinations of four binary digits?

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A)8
B)16
C)32
D)64
3
What is the total number of combinations of six binary digits?

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A)64
B)32
C)16
D)8
4
What is the process that produces this digital signal from an analog signal?

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A)doping
B)programming
C)switching
D)sampling
5
Which best describes computer software?
A)It is a type of temporary storage.
B)It is a list of instructions.
C)It contains analog information.
D)It cannot be stored magnetically.
6
Where are elements that are semiconductors located on the periodic table?
A)between metals and nonmetals
B)in the right column
C)in the left column
D)in the bottom row
7
Which is NOT an electronic device?
A)calculator
B)television
C)CD player
D)lightbulb
8
Which are NOT a part of integrated circuits?
A)semiconductors
B)vacuum tubes
C)diodes
D)transistors
9
Why is the material called an n-type semiconductor?

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A)It has extra protons.
B)It has extra electrons.
C)It has extra neutrons.
D)It has equal numbers of protons and neutrons.
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