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WorksheetsMagnets Test Review
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
_________could be used in a simple circuit to make a light bulb glow.
a)
glass
b)
metal
c)
plastic
d)
rubber
2.
Which material would be the BEST conductor to make the circuit light the bulb?
a)
rubber band
b)
glass
c)
penny
d)
wood
3.
Tin cans, aluminum foil, copper wire, and an iron ball are all examples of good________
a)
conductors
b)
insulators
4.
A magnet is the strongest at the _________
a)
top
b)
middle
c)
bottom
d)
poles
5.
What attracts paper clips to the nail in an electromagnet?
a)
sound energy
b)
heat energy
c)
magnetic force
d)
gravitational force
6.
Increasing the number of coils around an electromagnet makes it_____________.
a)
weaker
b)
stronger
7.
In order for a magnetic field to be created in an electromagnet, what must flow through the wire?
a)
heat
b)
metal
c)
light
d)
electricity
8.
Which material will give an electromagnet its GREATEST strength?
a)
iron
b)
tin
c)
copper
d)
aluminum
9.
Decreasing the number of coils around a nail will _________its magnetism.
a)
strengthen
b)
weaken
10.
Which would make the STRONGEST electromagnet?
a)
thick iron core
b)
thin iron core
c)
thick aluminum core
d)
thin aluminum core
11.
Can a piece of wood be placed in a circuit to light a bulb?
a)
Yes. Wood is a good conductor.
b)
Yes. Wood is a good insulator.
c)
No. Wood is not a good conductor.
d)
No. Wood is not a good insulator.
12.
A material through which a current cannot move easily is a(n)_________________.
a)
conductor
b)
insulator
13.
Which of the following will LEAST likely allow electricity to flow?
a)
aluminum
b)
copper
c)
plastic
d)
water
14.
Opposite poles of a magnet ________.
a)
attract
b)
repel
15.
What should I do if I want to attract more paper clips to my electromagnet?
a)
decrease the number of batteries
b)
remove the switch from the circuit
c)
increase the number of coils in the wire
d)
replace the iron nail with a thinner one
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