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