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WorksheetsElectricity and Magnetism Test
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
Which of the following demonstrates static electricity?
a)
You know you should never put your fingers into an electrical outlet. You could get shocked.
b)
You bend a paper clip back and forth until it breaks. The broken ends feel hot.
c)
You brush your hair on a cold, dry day. Your hair springs away from your head and sticks out in all directions.
d)
You use a charger to charge batteries for a digital camera.
2.
Which is a correct statement about lights that are part of a series circuit?
a)
The lights will flash on and off in a pattern.
b)
If one light burns out, the others will go out.
c)
If one light burns out, the others will stay lit.
d)
Two switches are needed to turn the lights on and off
3.
For an electrical device to operate properly, the circuit must be
a)
insulated.
b)
series.
c)
parallel.
d)
unbroken.
4.
Of these materials, which would NOT make a good insulator
a)
plastics.
b)
metals.
c)
rubber tubing.
d)
cotton cloth.
5.
The diagram below shows an electric circuit.
Which explains why this circuit will NOT work?
a)
It has no energy source.
b)
It has no energy conductor.
c)
The energy receiver is too small.
d)
The energy pathway is not closed.
6.
Lightning is a form of
a)
air current
b)
magnetism
c)
cloud cover
d)
static electricity
7.
Electric energy is produced by the movement of
a)
protons
b)
neutrons
c)
nucleus
d)
electrons
8.
A student wants to block the flow of electricity. Which substance would be best?
a)
Aluminum
b)
Copper
c)
Iron
d)
Rubber
9.
What kind of circuit allows a current to flow through it?
a)
Open
b)
Closed
c)
Electron
d)
Broken
10.
Which type of circuit (series or parallel) would be best for a string of holiday lights so that if one bulb burns out, the rest of the lights will stay on?
Why?
(Please answer both questions to receive full credit)
4 lines
11.
A simple electromagnet can be made with which of the following?
a)
An electric current.
b)
A turbine and a nail.
c)
A nail, a wire, and a battery.
d)
A compass and a battery.
12.
The places on a magnet where the magnetism is the strongest are the:
a)
south pole and middle
b)
north pole and middle.
c)
north and south pole.
d)
east pole and west pole.
13.
How is an electromagnet different from a permanent magnet?
a)
An electromagnet is smaller and less powerful.
b)
An electromagnet’s magnetism can be turned off.
c)
An electromagnet can be built without using metal.
d)
An electromagnet does not attract objects containing iron.
14.
Which type of material does a magnet attract?
a)
aluminum
b)
iron
c)
glass
d)
cotton
15.
Which choice best completes this sentence: Like poles ___________, while unlike poles ______________.
a)
repel, repel
b)
attract, repel
c)
repel, attract
d)
attract, attract
16.
Which statement is true?
a)
Bar magnets are permanent, but electromagnets are temporary.
b)
Bar magnets and electromagnets are permanent.
c)
Electromagnets are permanent, but bar magnets are temporary.
17.
What happens to the magnetic field of an electromagnet when the current is increased?
a)
The magnetic field weakens.
b)
The magnetic field strengthens.
c)
The magnetic field disappears.
d)
The magnetic field remains unchanged.
18.
Which of the following materials is most likely to be used as the core of an electromagnet?
a)
Plastic
b)
Wood
c)
Iron
d)
Glass
19.
Which of the following is a property of a series circuit?
a)
The current is divided among the components.
b)
The voltage is the same across all components.
c)
If one component fails, the entire circuit stops working.
d)
The resistance is the same across all components.
20.
Which of the following materials is a good conductor of electricity?
a)
Glass
b)
Copper
c)
Rubber
d)
Wood
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