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WorksheetsNuclear Changes
Total questions: 13
Worksheet time: 3mins
Name
Class
Date
1.
Nuclear Fusion involves splitting a nucleus.
a)
True
b)
False
2.
During one beta decay, half of a radioactive sample will decay.
a)
True
b)
False
3.
Alpha decay involves the joining of nuclei.
a)
True
b)
False
4.
Isotopes of an element have different mass numbers.
a)
True
b)
False
5.
Which of the following involves the use of radioactive materials?
a)
smoke detectors
b)
locating defects in materials
c)
generating electrical energy
d)
All of these
6.
Which particle both begins and is produced by a nuclear chain reaction?
a)
positron
b)
alpha particle
c)
neutron
d)
beta particle
7.
Which nuclear radiation can be stopped by paper?
a)
alpha
b)
beta
c)
gamma
d)
none of these
8.
The half life of an radioactive atom is 2 months. If you have 1 g of this element, how much will remain after 6 months?
a)
0.5 g
b)
0.25 g
c)
0.13 g
d)
None of the sample will remain
9.
The waste products of nuclear fission
a)
are harmless
b)
are safe after 20 years
c)
can be destroyed by burning
d)
remain radioactive for thousands of years
10.
Which statement is false?
a)
Nuclear fusion happens on the sun
b)
Nuclear fusion is the joining of atoms
c)
Fusion is used to generate electricity
d)
Fusion uses hydrogen for fuel
11.
What kind of radiation is being given off in this diagram?
a)
alpha
b)
beta
c)
gamma
d)
delta
12.
What kind of radiation is being given off in this image?
a)
alpha
b)
beta
c)
gamma
d)
zeta
13.
If the atomic number of a calcium-45 atom is 20, how many neutrons does it have?
a)
65
b)
20
c)
45
d)
25
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