Transferring Electrical Energy Worksheet
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46Q1.
(a)
The student is using a microphone connected to a cathode ray oscilloscope (CRO).
The CRO displays the sound waves as waves on its screen. What does the microphone
do?
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
(2)
(b)
The amplitude, the frequency and the wavelength of a sound wave can each be either
increased or decreased.
(i)
What change, or changes, would make the sound quieter?
...........................................................................................................................
(1)
(ii)
What change, or changes, would make the sound higher in pitch?
...........................................................................................................................
(1)
(Total 4 marks)
Page 1 of 46
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