Sounds are produced by , vibrations , movements of objects , What do the dots represent?, Sound particles , Air particles, Which waveform has a high pitch?, The left waveform, The right waveform, The range of sound waves which can be heard by humans is called, Audible range, Amplitude range, The humans' ''Audible range'' , 20,000 to 200,000 Hz, 20 to 20,000 Hz, Sound waves which have a frequency that is above 20,000 Hz is called , Ultraviolet waves, Ultrasound waves, List the animals which can hear ultrasound waves, Easy!, Correct!, A high pitch sound, Whistle , Drums, A low pitch sound, Whistle , Drums, Fill in the diagram, Easy!, Done!, Fill in the diagram, Easy!, Done!.
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Physics-ch.13
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