Wave Speed Worksheet Page 3
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4Name: ________________________
Period: __________
Date: _____________
11. Tom goes outside on a 20 ⁰ C day and knocks two pieces of wood together. If he hears
the echo 0.554 seconds later, how far away is the wall?
(6)
Knowns
Unknowns
Formula
a. If Tom goes outside on a different day and tries this experiment again from the
same spot, but this time he hears the echo 0.557 seconds later, what is the
temperature outside in Celsius?
(6)
Knowns
Unknowns
Formula
12. A wave has a frequency of 540 Hz and is traveling at 340 m/s. What is its
wavelength?
(3)
Knowns
Unknowns
Formula
13. Complete the following chart:
(0.5 each)
Wave Speed (m/s)
Wavelength (m)
Frequency (Hz)
356
3.41
331
264
5.28
66.7
343
20,000
Points: ____ / 17
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