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WorksheetsWaves L1-4 Quiz
Total questions: 14
Worksheet time: 53mins
Why doesn’t sound travel through a vacuum?
Vacuums are too cold to allow sound waves to travel through them.
Sound waves require a medium to travel through.
Vacuums absorb the sound.
Explosions in space can be heard therefore sound does travel in space.
Sound waves lengths are too long to travel the distance.
How is frequency related to period?
They are the same thing.
Period = 1 / frequency.
Frequency = amplitude and period.
Speed = period / frequency.
Period = speed x frequency.
A longitudinal wave with a frequency of 1000.0 Hz and a wavelength of 2.00 m travels along a steel rail. How long will it take the wave to travel 100.0 km?
16.7 s
50.0 s
1.67 x 10-2 s
66.7 s
1.67 x 102 s
A crest with an amplitude of 115 cm meets a trough with an amplitude of 82 cm. The result will be a:
crest with an 33 cm amplitude
trough with a 33 cm amplitude
crest with a 3 cm amplitude
trough with a 3 cm amplitude
crest with a 1.2 cm amplitude
What is the typical human range of hearing?
20 Hz to 20 kHz
20 kHz to 40 kHz
40 Hz to 20 kHz
10 Hz to 1 kHz
40 kHz to 200 kHz
ν=332 sm+(0.59 csm)⋅t v=td A d=100-m dash along a straight track was timed at 10.1 s by a timer located at the finish line who used the flash from the starter’s pistol to start the stopwatch(not the time you are looking for). If the air temperature was 25.0°C, what would the time have been if the timer had started the watch upon hearing the sound of the gun?
10.7 s
10.4 s
9.81 s
9.91 s
10.1 s
What is the height of the wave on the right?
4.0 cm
8.0 cm
10 cm
20 cm
40 cm
What is the wave amplitude?
4 cm
8 cm
10 cm
16 cm
A string is vibrating at a frequency of 5.40 Hz. How many vibrations does it make when the sound produced travels 784 m through air at temperature 10.0°C?
1.24
2.50x10^3
1.25x10^3
1.18x10^3
7.25x10^2
Two mountain climbers, part way up a mountain, clapped their hands and heard the echoes return from the mountain face opposite them in 6.0 s. If the air temperature was -5.0°C, how far away was the mountain face?
100 m
9.87 x 10^2 m
2.87 x 10^2 m
490 m
2.0 x 10^3 m
The distance between the Fourth and Seventh nodes in a standing wave is 33 cm. What is the speed of the waves in cm/s if the source has a frequency of 25 Hz?
5.5 x10^2
3.7 x 10^3
1.2 x 10^3
1.7 x 10^3
8.6 x 10^2
Sound waves travel fastest through:
Solid Objects
Liquids
Gases
Non-dense Objects
Cold Objects
The amplitude of a child swinging on a swing is 2.8 m. What total distance does she travel after 4 complete cycles?
14 m
5.4 m
7.2 m
45 m
29 m
A sailing ship is travelling in the North Atlantic at night. The captain is worried about icebergs, but has no radar. The captain sounds the ship’s horn and hears the echo 2.4 s later. If the air temperature is -10°C, how far away is the iceberg?
1.1 km
0.4 km
0.78 km
0.39 km
0.81 km
