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4 cards from this section. Quick, good the night before a test.
What is a mechanical wave?
Think about waves you can hear through air.
Define wavelength.
Look at the distance between two crests.
What type of wave needs a medium to propagate?
Consider how sound travels in air.
True or False: Sound waves are transverse waves.
Think about how sound is produced.
A wave travels 400 meters in 2 seconds. Calculate its speed.
Use the basic speed formula.
If a sound wave has a frequency of 500 Hz and travels through air at 340 m/s, what is its wavelength?
Use the relationship between speed, frequency, and wavelength.
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