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4 cards from this section. Quick, good the night before a test.
Define sound waves.
Think about what sound needs to travel.
What are the two regions in a sound wave called?
Recall the regions of high and low pressure.
What is the speed of sound fastest in?
Consider how particles are arranged in different states of matter.
True or False: The amplitude of a sound wave determines its frequency.
Think about what affects loudness vs. pitch.
Consider an opera singer whose pitch increases as they walk towards an audience. Explain how sound waves are affected by this movement.
Relate to how cars sound different as they pass by.
In a lab, a sound wave travels through air at room temperature. If the air is heated, how will this affect the frequency of the sound wave? Explain why.
Think about the relationship between speed and temperature.
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