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Electricity And Magnetism
Test Description: A test on electricity and magnetism
Instructions: Answer all questions to get your test result.
1) Which statement about magnetism is correct?
A
A magnet's force is greatest at its poles.
B
The smaller a magnet, the greater its force.
C
Magnets attract all types of metal.
D
The S pole of a magnet always points north.
2) You hold the south poles of two magnets near each other. The poles will
A
spin clockwise
B
attrack each other
C
repel each other
D
spin counterclockwise
3) If you connect too many appliances to one circuit, the wires can
A
overheat and cause a fire
B
blow up
C
generate more power and heat
D
give you a shock if you touch them
4) When you turn off one lamp, all the lights in the room go off. The electric appliance must be connected to
A
an electromagnet
B
a series circuit
C
a generator
D
a parallel circuit
5) When two objects have different electric charges, they
A
push away from each other
B
pull toward each other
C
lose matter
D
gain energy
6) Electric current is the flow of
A
magnetism through matter
B
energy and light through matter
C
negative charges through matter
D
positive charges through matter
7) Electric wire is coated with plastic or rubber because these materials
A
melt very slow
B
are inexpensive and easy to make
C
conduct the flow of electricity
D
are good resistors
8) Electric current passes easily through a
A
resistor
B
conductor
C
insulator
D
switch
9) Every time you turn on a light, you
A
remove a source of power from a circuit
B
add a source of power to a circuit
C
close an open circuit
D
open a closed circuit
10) Most electric generators make electricity using
A
nuclear energy or coal
B
wind or rushing water
C
a compass and a parallel circuit
D
a magnet and an energy source
*select an answer for all questions
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