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Magnetism
Test Description: Questions to help you study for the Electricity Magnetism Test.
Instructions: Answer all questions to get your test result.
1) Materials that are attracted to magnets include:
A
Steel
B
Copper
C
all of the above
D
Iron
2) What opposite poles of a magnet do:
A
repel
B
attract
3) An object that attracts or repels certain other materials is called a:
A
magnet
B
magnetic field
C
pole
D
electromagnet
4) Where the magnetic field is the strongest:
A
at the north end
B
in the middle
C
at the south end
D
at the poles
5) The area around the magnet that exerts force is called a:
A
electric field
B
magnetism
C
magnetic field
D
static charge
6) The force of a magnet pushing or pulling is called:
A
friction
B
magnetic field
C
magnets
D
magnetism
7) Things that affect the power of a magnetic field include:
A
All of the above
B
size of the magnet
C
distance between magnets
D
direction of magnet
8) Increasing the distance between magnets has this effect on the magnetic force:
A
Decreases the attraction force
B
Only changes when the magnets are in physical contact
C
No change
D
Increases the attraction force
9) What happens when 2 like poles interact?
A
repel
B
attract
10) What happens when two unlike poles interact?
A
attract
B
repel
11) A device that converts electrical energy into physical movement
A
Generator
B
Electromagnet
C
Magnet
D
Motor
12) Occurs naturally around a wire with flowing electricity:
A
Static electricity
B
Conductor
C
Electric field
D
Magnetic field
13) What increases the strength of the magnetic field by condensing it together?
A
Magnetism
B
Nail
C
Wire coils
D
Battery
14) An electric current flowing through a wire generating a magnetic field is called a:
A
Generator
B
Motor
C
Magnet
D
Electromagnet
15) What material is placed inside the coils to make the magnet stronger?
A
Copper wire
B
Magnet
C
Aluminum nail
D
Iron or steel nail
16) What provides the electricity for the circuit?
A
Copper wire
B
Iron or steel nail
C
Battery
17) Increasing the number of coils around a nail, has what kind of effect on the strength of the electromagnet?
A
Makes it weaker
B
Has no effect
C
Makes in stronger
18) Increasing the amount of voltage, has what kind of effect on the strength of the electromagnet?
A
Makes it stronger
B
Has to effect
C
Makes it weaker
19) If you took out the iron nail from an electromagnet, what happens?
A
Has no effect
B
Makes the magnetic field stronger
C
Makes the magnetic field weaker
D
Loses its magnetism
20) Increasing the strength of a magnet will decrease the speed of a motor.
A
False
B
True
*select an answer for all questions
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