WorksheetsNuclear Fusion and Fission
Total questions: 16
Worksheet time: 39mins
Name
Class
Date
1.
_________ happens naturally due to an unstable nucleus.
a)
fission
b)
fusion
c)
radioactive decay
d)
K-capture
2.
The splitting of a nucleus into smaller nuclei is
a)
fusion
b)
fission
c)
decay
d)
gamma radiation
3.
Which of these statements correctly describes how the chain reaction occurs in nuclear fission.
a)
Uranium releases electrons to create electricity
b)
When a nuclear fission reaction occurs, the electrons 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)
Protons and neutrons change to electrons because the nuclei are so big
4.
Half life is
a)
Fission
b)
Fusion
c)
Radioactive Decay
5.
U-235 is the primary fuel
a)
Fission
b)
Fusion
c)
Radioactive Decay
6.
Which type of radioactive decay gives off energy only?
a)
alpha
b)
beta
c)
gamma
7.
What is Half-life?
a)
The amount of time it takes for some of the nuclei in a sample of the isotope to decay
b)
The amount of time it takes for half the electrons in a sample of the isotope to decay
c)
The amount of time it takes for half the nuclei in a sample of the isotope to decay
d)
the amount of time it takes to double the nuclei in a sample of the isotope to decay
8.
What is emitted during Alpha Radiation?
a)
A helium nuclei
b)
An electron
c)
Gamma Rays
d)
A neutron
9.
This happens naturally due to an unstable nucleus.
a)
fission
b)
fusion
c)
radioactive decay
d)
K-capture
10.
Energy obtained from this process powers nuclear submarines and aircraft carriers
a)
Fission
b)
Fusion
c)
Radioactive decay
d)
Diesel Fuel
11.
This is an example of...
a)
Chain reaction
b)
Fusion reaction
c)
Decomposition reaction
d)
Decay
12.
What is a chain reaction?
a)
When electrons travel 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
13.
Which of the following energy yields is likely to have come from a fission or fusion reaction?
a)
2.5 × 102 kJ/mol
b)
1.0 × 102 kJ/mol
c)
1.4 × 1011 kJ/mol
d)
1.2 × 103 kJ/mol
14.
In a nuclear reaction, a change in mass of 1.0 × 10–4 g occurs. What is the corresponding change in energy? Use the formula E = mc2.
a)
9.0 × 106 kJ
b)
9.0 × 1012 kJ
c)
9.0 × 103 kJ
d)
9.0 × 109 kJ
15.
If a reaction yields 2.5165 × 108 kJ, then how much mass was lost?
a)
5.600 × 10–6 kg
b)
5.600 × 10–3 kg
c)
2.300 × 10-6kg
d)
2.300 × 10–3 kg
16.
Which of the following reactions would yield the largest amount of energy per mole of fuel?
a)
92235U + 01n → 56141Ba + 3692Kr + 301n
b)
CH4 + 2O2 → H2O + CO2
c)
92238U → 90234Th + 24He2+
d)
94238Pu → 92234U + 24He2+
100 %
