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More in Waves & Sound
Oscillations and Simple Harmonic Motion
Wave Motion
Sound Waves and Hearing
Superposition and Standing Waves
Doppler Effect
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11 problems
Type:
Any
Conceptual
Numerical
1.
A child hears frequencies from 20 Hz to 20 000 Hz; an older person only up to 12 000 Hz.
High School (9–10), General · Wave Motion, Sound Waves and Hearing
StemPy Lab
Medium
2.
A sound of frequency 850 Hz travels in air at 340 m/s.
High School (9–10), General · Wave Motion, Sound Waves and Hearing
StemPy Lab
Medium
3.
A sound in a pipe filled with helium has a frequency of 1600 Hz and a wavelength of 0.6 m.
High School (9–10), General · Wave Motion, Sound Waves and Hearing
StemPy Lab
Easy
4.
A tuning fork of frequency 320 Hz makes a sound in air.
High School (9–10), General · Wave Motion, Sound Waves and Hearing
StemPy Lab
Easy
5.
A graph of pressure against time shows 6 complete waves in 0.018 s.
High School (9–10), General · Wave Motion, Sound Waves and Hearing
StemPy Lab
Medium
6.
The time period of a vibrating string is 0.0032 s. What is its frequency?
High School (9–10), General · Wave Motion, Sound Waves and Hearing
StemPy Lab
Easy
7.
A source makes 75 vibrations in 3 s. Find its frequency and its time period.
High School (9–10), General · Wave Motion, Sound Waves and Hearing
StemPy Lab
Easy
8.
A musician sounds a 320 Hz fork with a sitar string and hears 5 beats each second.
High School (11–12) · Wave Motion, Superposition and Standing Waves
StemPy Lab
Medium
9.
A string has a tension of 72 N and a mass of 0.02 kg for each metre.
High School (11–12) · Wave Motion, Superposition and Standing Waves
StemPy Lab
Medium
10.
Two speakers send out the same note, starting together, with a wavelength of 0.5 m.
High School (11–12) · Wave Motion, Superposition and Standing Waves
StemPy Lab
Medium
11.
A wave on a rope has a frequency of 40 Hz and a wavelength of 0.85 m.
High School (11–12) · Wave Motion, Superposition and Standing Waves
StemPy Lab
Easy