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Sound transfers a disturbance through matter - Paper 3

Read the information, then answer the questions. An adult may read the instructions aloud. Show your working where asked.

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Supplied sound model in air: tone A has frequency 350 Hz and amplitude 1 model unit; B has 700 Hz and amplitude 1 unit; C has 350 Hz and amplitude 2 units. Hz means vibrations per second. Compare at the same listening conditions. Particles oscillate locally while a longitudinal disturbance travels. No sounds need to be played.

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