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16 Cards in this Set
- Front
- Back
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A bulb will only light if electric current flows in a complete ________________ to it, through it, and away from it.
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loop
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Electric current can produce:
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sound
light heat magnetism motion |
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Anything ____________ would make a good conductor?
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metal
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True or False: Human beings cannot conduct electricity.
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False, they can!
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True or False: You can charge a balloon by shaking it.
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False, you would need to rub it against wool, hair, or other objects.
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What happens when two balloons that are charged with wool are placed near each other?
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They repel
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True or False: Electricity charged objects must touch to exert forces on each other.
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False, they can just be near them (remember the balloon and the aluminum foil?)
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When we charged the balloons and the combs in our class experiment, which materials did the balloons attract?
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aluminum foil - balloons
styrofoam - balloons hair - comb |
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What does a battery do in a circuit?
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It is a source of electric current
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What does a wire do in an electrical circuit?
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It carries the electric current.
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What does a light bulb do in a an electrical circuit?
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It receives the electrical current.
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What does a switch do in an electrical circuit?
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It opens or closes the electrical circuit.
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What is the flow of electrical charges called?
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Electric current
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Why does an electrical cord have two bundles of wires inside it?
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One is for carrying electric current to an appliance, and the other is for carrying electric current away from the appliance.
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Your brother wants to stick a fork in the toaster - you tell him that it isn't safe? Why?
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Metal is a conductor of electricity, he could get shocked.
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You have young children at home - what should you do to protect them from the electricity flowing in the house?
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Make sure you have child safety covers on the outlets to prevent little fingers from going in the outlet.
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