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WorksheetsNuclear Fission & Fusion - MCQs
Total questions: 10
Worksheet time: 5mins
What is nuclear fission?
The joining of two atomic nuclei to form a larger nucleus
The splitting of a large atomic nucleus into smaller nuclei, releasing energy
The emission of a neutron from an unstable nucleus
The conversion of a neutron into a proton
Which of the following is an example of a fuel used in nuclear fission?
Hydrogen-2
Uranium-235
Helium-4
Carbon-12
In a nuclear reactor, what is the purpose of the control rods?
To increase the number of neutrons in the reactor
To absorb neutrons and control the rate of the reaction
To reflect neutrons back into the core
To generate the heat needed for electricity production
What is nuclear fusion?
The process of an atom gaining or losing electrons
The splitting of a large nucleus into two smaller nuclei
The joining of two light nuclei to form a heavier nucleus, releasing energy
The process of converting protons into neutrons
Which of the following conditions is necessary for nuclear fusion to occur?
Low temperature and high pressure
High temperature and low pressure
Low temperature and low pressure
High temperature and high pressure
6. (Hard) Why does nuclear fusion require such high temperatures?
To overcome the electrostatic repulsion between nuclei
To increase the speed of the reaction
To reduce the energy required for fusion
To stabilize the fusion process
Which equation, proposed by Einstein, explains why mass is converted into energy in nuclear reactions?
F = ma
E = mc²
V = IR
P = IV
Why is nuclear fusion considered a potentially better energy source than nuclear fission?
It produces more energy and has no radioactive waste
It can occur at room temperature
It uses readily available uranium as fuel
It does not require extreme conditions
Which of the following statements about nuclear fission is true?
A) A single fission reaction releases more energy than a fusion reaction
B) Fission requires high temperatures to take place
C) A chain reaction can occur if released neutrons cause further fission events
D) Fission reactions only occur in stars
Where does nuclear fusion naturally occur?
In nuclear power stations
In the Earth's core
In the Sun and other stars
In nuclear bombs
