Name
Date
Score
Chapter 10 Checkup
Read each sentence. Write your answer on the line that follows.
are brought together?
2.
What is created as electrons move continuously through a
conductor?
3.
What form of energy does a generator in a power plant change into
electrical energy?
4.
Name two devices that help ensure the safety of electrical systems
in buildings.
5.
What kind of circuit has its parts and connections on a small, thin
slice of silicon?
6.
What is the term for computer chips that work with words, numbers,
and other data?
7.
A string of lights will continue to be-lit even if one bulb burns out.
What kind of circuit is this?
8.
What kind of device in a clothes dryer .uses electrical energy to spin
the inside of the dryer?
9.
A lamp has a 2S0-watt bulb. How.long can it stay on before it uses
one kllewatt-nour of energy?
© Sliver, Burdett & Ginn-Inc.
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~___,CIEnCE
Name
HORIZONS
--.....
Date
Score _
~
Chapter 10 Core Concepts
Fill in the circled letter for the one best answer.
a proton giving up it's positive charge
(8) like charges repelling each other
(C) a charge collecting on the surface of an object
(0) electrons attracting other electrons
(A)
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2. What moves through a conductor to create a current?
(A) protons
(B) electrons
(C) atoms
. (D) neutrons
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3. Which of these materials is a good conductor of electric
current?
(A) metal
(8) wood
(C) paper
(0) glass
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4. Which part of a lamp opens and closes the circuit?
(A) socket
(8) bulb
(C) switch
(D) wire
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5. Electrons can follow more than one path in
(A) a short circuit.
(C) an open circuit.
(8) a broken circuit.
(0) a parallel circuit.
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6. Whatis the source of energy in a hydroelectric power plant?
(A) moving turbines
(C) moving water
(B) electricity
(D) magnets
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7. A string of outdoor lights has 24 bulbs in a series circuit. How
many paths can the current follow?
(A) 1
(B) 6
(C) 12
(0) 24
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8. What do hydroelectric, coal, and nuclear power plants have in
common?
~
(A) They change mechanical energy into electrical energy.
(8) They have the same fuel source.
.
(C) They use steam to turn the blades of turbines .
. (D) They release energy in the form of light.
)
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i
L
© Silver, Burdett & Ginn Inc.
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