WorksheetsBWS Nuclear Fission
Total questions: 10
Worksheet time: 7mins
Name
Class
Date
1.
Nuclear power uses ____ for fuel.
a)
steel
b)
coal
c)
uranium
d)
hydrogen
2.
The splitting of a nucleus into smaller nuclei is
a)
fusion
b)
fission
c)
decay
d)
gamma radiation
3.
What is a chain reaction?
a)
When electrons are emitted causing electricity
b)
When a nuclear fission reaction occurs, the protons emitted can strike other nuclei in the sample, and cause them to split
c)
When a nuclear fission reaction occurs, the neutrons emitted can strike other nuclei in the sample, and cause them to split
d)
When a nuclear fission reaction occurs, the electrons emitted can strike other nuclei in the sample, and cause them to split
4.
An example of an uncontrolled fission reaction is _______________
a)
Nuclear power plants
b)
Radio active decay
c)
Atomic Bomb
d)
On the surface of the sun
5.
What do control rods do in a nuclear reactor?
a)
Regulate the rate of reaction by absorbing and slowing neutrons
b)
Produce electricity
c)
Produce neutrons to increase the rate of reaction
d)
Reduce heat produced by the uranium rods
6.
One disadvantage of nuclear energy is ___.
a)
it is a fossil fuel
b)
it leaves behind radioactive waste
c)
it emits large amounts of pollution into the atmosphere
d)
there are no disadvantages
7.
_________ happens naturally due to an unstable nucleus.
a)
fission
b)
fusion
c)
radioactive decay
d)
K-capture
8.
What is the job of the moderator?
a)
Slows down the neutrons
b)
Speeds up the neutrons
c)
Absorb neutrons
d)
Release neutrons
9.
Which substances could be used as a moderator?
a)
Graphite
b)
Water
c)
Carbon dioxide
d)
Liquid helium
10.
Nuclear energy uses _____ to turn turbines to power a generator.
a)
wind
b)
water
c)
steam
d)
solar
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