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5 cards from this section. Quick, good the night before a test.
What is a sound wave?
Think about the medium through which sound travels.
What determines the pitch of a sound?
Consider what happens to the sound when you change its frequency.
What determines the pitch of a sound?
Think about high notes compared to low notes.
True or False: Sound waves can travel through a vacuum.
Consider how we hear sound and what is needed for that to occur.
Explain how sound waves can be used to determine the depth of a body of water and calculate the time it takes for a sound pulse to return from a depth of 150 meters (Speed of sound in water = 1482 m/s).
Consider how sonar works.
A sound wave travels in air at a speed of 343 m/s. Calculate the frequency of a sound wave with a wavelength of 0.5 meters.
Remember the relationship of speed, frequency, and wavelength.
5 more questions in this section. Enroll free to practise them all.
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