A balloon is rubbed all over with wool. The balloon will now attract wool because the balloon and wool
Electricity and Magnetism

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•
Other Sciences
•
6th - 8th Grade
•
Hard
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39 questions
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1.
FLASHCARD QUESTION
Front
Back
have opposite charges
2.
FLASHCARD QUESTION
Front
In a static discharge, which particles move from one object to another? Options: protons, neutrons, electrons, atoms
Back
electrons
3.
FLASHCARD QUESTION
Front
Which of the following could be used as the core of a simple electromagnet? Options: drinking straw, iron nail, a soda bottle, an ink pen
Back
iron nail
4.
FLASHCARD QUESTION
Front
A piece of nickel will be attracted to
Back
either pole of an electromagnet
5.
FLASHCARD QUESTION
Front
What is voltage?
Back
a measure of potential energy difference
6.
FLASHCARD QUESTION
Front
Which of these is an insulator? Options: a copper wire, a silver spoon, a plastic coating on a wire, an aluminum coating on a wire
Back
a plastic coating on a wire
7.
FLASHCARD QUESTION
Front
What is the purpose of a switch in an electric circuit? Options: to allow the circuit to be opened or closed, to change the direction of the current, to provide a push for the current, to increase the electric power to the load
Back
to allow the circuit to be opened or closed
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