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Magnetism Summative Review
Test Description: Use this activity to review for the Magnetism Summative Review
Instructions: Answer all questions to get your test result.
1) To cause two magnets to exert LESS force on each other, you would
A
move them closer
B
make them dance
C
move them farther away
D
leave them alone
2) Identify one way to DECREASE the strength of an electromagnet
A
Increase the number of coils and the voltage of the battery.
B
Decrease the number of coils and the voltage of the battery
C
Increase the number of coils and decrease the voltage of the battery.
D
Decrease the number of coils and increase the voltage of the battery.
3) A magnet that only works when there is an electric current flowing is called a(n)
A
temporary magnet
B
permanent magnet
C
incomplete magnet
D
partial magnet
4) Like poles
A
jump around
B
attract
C
do nothing
D
repel
5) Items that would be attracted to a magnet must contain
A
gold, silver, or mercury
B
lions, tigers and bears (oh my)
C
iron, cobalt or nickel
D
aluminum, iron or tin
6) The domains of a piece of metal that contains iron will do what when in a magnetic field?
A
become angry
B
align and produce poles in that piece of metal
C
nothing
D
begin pointing in all directions
7) What is the relationship between the strength of an electrical current field strength in an electromagnet?
A
as the current increases, the strength decreases
B
the strength of the current does not affect the field strength
C
as the current increases, the strength increases
D
as the current increases or decreases, the strength remains constant
8) Why does the north end of a compass needle point North?
A
There is no explanation for this insanity!!
B
Its north pole is attracted to the earths magnetic south pole
C
The north pole is repelled by the earth's south pole
D
It is repelled by the earth's magnetic field
9) Creating a magnet from a non-magnetized piece of metal is known as
A
magnetization
B
magnetosphere
C
magnetism
D
magneticizing
10) Compasses can be affected by current flowing through a wire because
A
the compass is broken
B
the compass becomes confused
C
the electric current produces a magnetic field
D
the compass is attracted to the power source
*select an answer for all questions
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