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2 cards from this section. Quick, good the night before a test.
What is the audible range of sound for humans?
Think about the range of sounds you hear every day.
Define infrasound.
Consider sounds that are too low for humans to hear.
What is the frequency range of the average human ear?
Consider what range you hear most commonly.
Is infrasound above 20Hz?
Reflect on where infrasound fits in the frequency spectrum.
A person can hear a sound of frequency 15 kHz. Is this sound audible to them? Explain why or why not.
Consider the impact of age on sound perception.
Explaining why ultrasound is important in both medical and industrial fields.
Think about why clear images and safe structures are priority.
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