Magnets and Magnetism — Unit test Answers
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Nina is working with electricity and shortens the wires through which the current is flowing. What is Nina most likely trying to accomplish?
A
convert electric energy to heatB
convert electric energy to lightC
increase resistanceD
decrease resistance22
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What is the resistance of a clock if it has a current of 0.30 A and runs on a 9.0-V battery?
A
0.033B
2.7C
9.3D
3023
How are the magnetic field lines near the south pole of a magnet affected when a second south pole is brought near it?
A
The field lines combine with the lines around the second south pole.B
The field lines overlap with the lines from the second south pole.C
The field lines bend toward the second south pole.D
The field lines bend away from the second south pole.24
Beth made the chart shown.
A
X: Use DC Y: Use ACB
X: Use AC Y: Use DCC
X: Powered by Current Y: Powered by MagnetismD
X: Powered by Magnetism Y: Powered by Current25
How does increasing the distance between charged objects affect the electric force between them?
A
The electric force increases because the distance has an indirect relationship to the force.B
The electric force increases because the distance has a direct relationship to the force.C
The electric force decreases because the distance has an indirect relationship to the force.D
The electric force decreases because the distance has a direct relationship to the force.Did you find these answers helpful?
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