Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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| 1. | Which of these is
not necessary in order to conduct electricity? a. | energy receiver | c. | energy source | b. | insulator | d. | conductor | | | | |
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| 2. | Which of these is
a good conductor of electricity? a. | metal | c. | plastic | b. | glass | d. | rubber | | | | |
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| 3. | Electricity
traveling through a wire is an example of _______. a. | energy being transferred from place to place | b. | energy flowing through the water cycle | c. | Earth’s gravitational pull on an object | d. | a force applied by a simple machine | | |
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| 4. | Benjamin Franklin
discovered the form of energy produced by lightning. Experiments with lightning killed many
people before he discovered that lightning is a form of _______. a. | gravity | c. | electricity _ | b. | water | d. | magnetism | | | | |
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| 5. | Marta has a radio
in her room. It requires electricity in order to play. Which of the following is necessary in order
for electricity to move from the source to the radio? a. | an insulator | c. | a magnet | b. | a circuit * | d. | a light
bulb | | | | |
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| 6. | After Nita
connected a copper wire from one terminal of a battery to the other, the wire became very hot. Why
did the wire get hot? a. | Chemical energy in the battery produced
vibrations. | b. | Air around the wire became
electrified. | c. | The circuit was not
complete. | d. | Electrical energy was changed
into heat energy. | | |
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