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An oscilloscope can be used to find out about sound waves.
For the next questions an
oscilloscope was used to investigate four sounds A, B, C and D.
Look at the waves below that are
seen on the oscilloscope then answer the next 10
questions :-

Use the letters A, B, C and D to answer
these questions.
a. Which two sounds must have been the loudest ? ____ and ____
b. Which two sounds are the softest ? ____ and ____
c. Which two sounds have the lowest frequency ? ____ and
____
d. Which two sounds have the lowest pitch ? ____ and
____
e. Which two sounds have the highest pitch ? ____ and
____
f. Which two sounds have the highest frequency ? ____ and
____
g. Which one sound has a higher frequency and is louder than sound C ? _____
h. Which one sound has the same loudness but higher pitch than C ? _____
i. Which one
sound is the loudest and has the highest pitch ? _____
j. Which two sounds have the highest amplitude ? _____ and
_____