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What type of wave is a sound wave?
A longitudinal mechanical wave.
How is sound produced?
When an object vibrates.
How does the amplitude of a wave affect the volume?
A large amplitude means a larger sound, a smaller amplitude means a smaller sound
How is pitch related to frequency?
The higher of the frequency, the higher the pitch
What is ultrasound?
A name given to sound waves that have frequencies greater than 20,000 Hz.