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Nuclear Fusion (physics Only) (GCSE Physics)

The following is a GCSE Physics test covering 'Nuclear Fusion (physics Only)' from the broader topic Atomic Structure. The test is geared towards the AQA exam board style syllabus.
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When mass is lost during a fusion reaction and converted into energy, which equation gives the energy released?
Which energy source powers most stars, including the Sun, over their main life?
Which of these is a correct safety or environmental concern specifically associated with fusion reactors?
Which atomic-structure fact is true and important for understanding fusion fuel?
What is one environmental advantage frequently cited for fusion power compared with fossil fuels?
In the Sun, hydrogen nuclei fuse to form helium. Which particle is NOT produced directly by the main proton–proton chain reaction?
What is the Lawson criterion (in simple terms) relevant to fusion reactors?
Which statement about tritium fuel for fusion reactors is correct?
Which product of the D–T fusion reaction causes material damage and radioactivity in surrounding structures?
What happens to the binding energy per nucleon as light nuclei fuse into heavier nuclei up to iron (Fe)?
Which fusion reaction is the primary focus for experimental fusion reactors because it has a high cross-section at “lower” temperatures?