Physics > A-Level Mark Scheme > AQA A-LEVEL PHYSICS 7408/1 Paper 1 Mark scheme June 2022 (All)
AQA A-LEVEL PHYSICS 7408/1 Paper 1 Mark scheme June 2022
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1 mark each for alpha and Th; numbers must be correct Must see “+” for full marks Condone He for alpha If no other mark is given, one mark can be awarded if He-3 is used and A and Z are corr... ect MAX 1 for extra particles but condone “+ Evidence for MP1 can be found in the form of equations or diagrams. Treat references to A, B and F in FOR or AGAINST as neutral. When an energy difference between two spectral wavelengths is correctly calculated, only MP2 and MP3 can be scored. Idea that (graph shows that) beta particles (from C-14) have a range of (kinetic) energies There is a fixed/maximum/total amount of energy (released by C-14) so there must be another particle that carries the energy differences/missing energy away [Show More]
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