C2 1
Sound
a) Describe a simple experiment to measure the speed of sound in air.
[5]
b) A loudspeaker produces a sound with frequency 250 Hz. Assuming the speed of sound is 340 ms−1, determine the wavelength of the sound waves.
[3]
c) A tropical storm approaches Jamaica. Ingrid measures the time between seeing a flash of lightning and hearing the sound of thunder. She estimates it to be 9 seconds. Calculate the distance between the tropical storm and Ingrid.
[3] 2
a) Sound is a longitudinal wave. What does this mean?
[2]
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02/06/16 4:58 PM