WorksheetsPhysical Science Chapter 4: Electrical Energy
Total questions: 18
Worksheet time: 9mins
Name
Class
Date
1.
1. The part of the atom that can rub off from on atom to another is the _____.
a)
proton
b)
neutron
c)
electron
d)
nucleus
2.
2. This atom _____.
a)
has a positive charge.
b)
has a negative charge
c)
has no charge.
d)
has all of the above.
3.
3. Giant sparks of moving electric charges are called _____.
a)
electric currents.
b)
lightning.
c)
thunder.
d)
electric circuits.
4.
4. In an electric current, electricity flows _____.
a)
steadily.
b)
in a jumping way.
c)
occasionally.
d)
in sports.
5.
5. All of there are special swiches that protect us EXCEPT
a)
fuses.
b)
circut breakers.
c)
GFCI outlets.
d)
dimmer switches
6.
6. The picture below is a
a)
thermostat.
b)
circut breaker
c)
fuse.
d)
GCFI outlet.
7.
7. 7,000 watts equal _____.
a)
7 kilowatts
b)
70 kilowatts
c)
700 kilowatts
d)
7,000 kilowatts
8.
8. Electric stoves us an electrical current of _____.
a)
9 volts
b)
100 volts
c)
110 volts
d)
220 volts
9.
9. The two magnet poles are _____.
a)
E and W
b)
N and S
c)
N and E
d)
S and W
10.
10. The basic principles of magnetism and electricity _____.
a)
are not related.
b)
have a few similarities.
c)
are closely related.
d)
are exactly the same.
11.
11. An electric generator _____.
a)
runs on electricity.
b)
changes electrical energy to mechanical energy.
c)
runs on batteries.
d)
uses a magnet.
12.
12. A generator's drive shaft can be turned by all of these EXCEPT
a)
burning oil.
b)
falling water.
c)
solar panels.
d)
a nuclear reaction.
13.
13. Electrons have a (a) electric charge.
14.
14. When electrons jump from a cloud to the ground, you see (a) .
15.
15. plastic is an example of a good electrical (a) .
16.
16. The flow of electricity is controlled by a (a) .
17.
17. Electric bills are based on how many (a) are used.
18.
18. Mechanical energy is changed into electrical energy by a (a) .
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