Intelligent assessment and revision tools for OCR A Physics
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Start quizGCSE to AS Transition
A practical guide to the jump from GCSE to AS Physics, with summer prep and worked examples.
Read the guideMoving up from GCSE? Read the GCSE to AS Level Physics transition guide. Looking for revision routes? Start with OCR A Level Physics revision, A Level Physics MCQ practice, or A Level Physics problem solving practice.
Daily Question
Test your physics knowledge with a real daily question. Pick your level and give it a go!
In a lab, a 0.75 m air column is closed at one end and driven by a loudspeaker at the open end. Strong resonances are observed at 230 Hz and then at 690 Hz. The cork is removed so the tube is now open at both ends; the length and room conditions are unchanged. Which frequency is now the lowest resonance for this open tube?
Which estimate is closest to the energy released per event when a U-235 nucleus undergoes fission into two medium-mass fragments? A lab chart shows the average binding energy per nucleon rises from about 7.6 MeV in U-235 to about 8.5 MeV in the fragments. Assume about 235 nucleons end up bound in the fragments and estimate the energy release from the change in binding.
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