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Worksheetschemistry
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
Which is not a part of an atom's nucleus?
a)
Neutron
b)
Proton
c)
Electron
d)
All are part of the nucleus
2.
An isotope has a different number of
a)
electrons
b)
neutrons
c)
protons
d)
positrons
3.
The average atomic mass for silicon will be closest to...
a)
Si-28 (92% abundance)
b)
Si-29 (5% abundance)
c)
Si-30 (3% abundance)
4.
About how much of our energy comes from coal?
a)
5%
b)
25%
c)
50%
d)
80%
5.
What is not true about fission reactions at power plants?
a)
They are exothermic
b)
They produce a lot of energy
c)
They are uncontrolled and fast
d)
They are slow and controlled
6.
The Law of Conservation of Mass is not always followed with nuclear reactions.
a)
True
b)
False
7.
Which nuclear power plant has not had a meltdown
a)
Three Mile Island (US)
b)
Chernobyl (Ukraine)
c)
Taishan (China)
d)
Fukushima (Japan)
8.
What element is often used in nuclear reactions?
a)
Hydrogen
b)
Uranium
c)
Oxygen
d)
Mercury
9.
What caused the nuclear meltdown in Fukushima?
a)
Earthquake destroyed the reactor
b)
Tsunami flooded the reactor
c)
Power outage shut down the cooling system
d)
None of the above
10.
Most nuclear reactors use:
a)
Fission
b)
Fusion
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