Lesson 4.4.4.1
4.4.4.1 Nuclear fission Quiz: AQA Physics, Unit 4
20 questions
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Lesson 4.4.4.1, Nuclear fission: 20 multiple choice questions for the AQA GCSE Physics (8463), Unit 4: Atomic structure, written with Revision Ninja.
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The 20 questions
-
What happens during nuclear fission?
- Protons decay
- Nucleus splits
- Electrons melt
- Nuclei fuse
-
Examples of nuclei that undergo fission include:
- Uranium and plutonium
- Carbon and oxygen
- Hydrogen and helium
- Sodium and chlorine
-
How common is spontaneous nuclear fission?
- Constant
- Rare
- Common
- Rapid
-
What must an unstable heavy nucleus usually do before fission can occur?
- Absorb a neutron
- Lose an electron
- Emit an alpha particle
- Gain a proton
-
During nuclear fission, what does the heavy nucleus split into?
- Three equal fragments
- Four separate protons
- Two smaller nuclei
- One single neutron
-
Which particle is typically emitted alongside gamma rays during a fission event?
- Two or three neutrons
- A positron
- A single electron
- Four alpha particles
-
What form of energy do all the products of nuclear fission possess?
- Kinetic energy
- Elastic energy
- Chemical energy
- Potential energy
-
What can the neutrons released during a fission event go on to start?
- Radioactive decay
- Nuclear fusion
- Chemical combustion
- A chain reaction
-
How is the chain reaction treated inside a working nuclear reactor?
- Controlled
- Accelerated
- Isolated
- Ignited
-
What causes the massive explosion of a nuclear weapon?
- Chemical explosion
- Spontaneous combustion
- Uncontrolled chain reaction
- Controlled fission
-
A neutron causes a fission event that releases 3 neutrons. Each of those 3 neutrons causes one further fission. How many neutrons are there after this second generation?
- 6
- 3
- 12
- 9
-
Each fission releases 2 neutrons and each neutron causes one further fission. Starting from one neutron, how many neutrons are there after 3 generations?
- 8
- 16
- 3
- 6
-
Why is neutron absorption usually necessary to trigger fission in large nuclei?
- Nuclei lack energy
- Electrons block splitting
- Spontaneous fission is rare
- Protons repel neutrons
-
What is the primary characteristic of nuclear fission?
- Splitting a nucleus
- Emitting a neutrino
- Joining two nuclei
- Losing a positron
-
What is the main benefit of controlled nuclear fission in power stations?
- Steady energy release
- Instant cooling
- Zero radiation
- Infinite fuel
-
What term describes a self-sustaining series of nuclear fissions?
- Radioactive decay
- Chain reaction
- Background radiation
- Nuclear fusion
-
What do control rods in a nuclear reactor primarily regulate?
- Coolant temperature
- Gamma ray frequency
- Number of neutrons
- Uranium mass
-
Where does the kinetic energy of fission products originate from?
- Released reaction energy
- Alpha particles
- Magnetic fields
- External heaters
-
How quickly does an uncontrolled nuclear chain reaction release energy?
- At a constant rate
- Very rapidly
- Very slowly
- Over centuries
-
What is the primary effect of fast-moving fission products on their surroundings?
- Creating light
- Generating sound
- Freezing matter
- Heating surroundings
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