Nuclear fusion (AQA GCSE Physics): Quizzes
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Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What happens during nuclear fusion?
What happens during nuclear fusion?
Small nuclei combine to form larger nuclei
What happens to some of the original mass during nuclear fusion?
What happens to some of the original mass during nuclear fusion?
It is converted into energy
How does the mass of fusion products compare to the original nuclei?
How does the mass of fusion products compare to the original nuclei?
Products are slightly less massive
What products form when deuterium and tritium fuse together?
What products form when deuterium and tritium fuse together?
Helium, a neutron, and energy
What speed must nuclei have for fusion to occur?
What speed must nuclei have for fusion to occur?
Incredibly high speeds
What fusion reaction occurs during a star's stable lifetime?
What fusion reaction occurs during a star's stable lifetime?
Hydrogen nuclei convert into helium
How much matter does the Sun convert into energy per second through fusion?
How much matter does the Sun convert into energy per second through fusion?
Approximately 4 million tons
How much longer can the Sun continue fusion with its remaining hydrogen fuel?
How much longer can the Sun continue fusion with its remaining hydrogen fuel?
Another 5 billion years
Why do nuclei naturally push each other away during fusion?
Why do nuclei naturally push each other away during fusion?
All nuclei have positive charges
What temperature is required for fusion to occur?
What temperature is required for fusion to occur?
Millions of degrees Celsius
What is the key difference between fusion and fission processes?
What is the key difference between fusion and fission processes?
Fusion joins nuclei; fission splits them
What fuels are typically used in fusion and fission respectively?
What fuels are typically used in fusion and fission respectively?
Hydrogen isotopes; uranium-235