A change in frequency due to moving toward or away from a sound wave.
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10
What is amplitude?
The height of sound waves. (or: The air density within compressions and rarefactions vs outside of them)
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15
What is frequency?
The number of times an object vibrates per second.
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What is volume and how is it measured?
The loudness of sound; decibels.
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25
How does changing the medium of a sound change its amplitude?
The denser the medium, the less the amplitude and vice versa.
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monster
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shark
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gift
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lifesaver
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How can we make sounds louder?
Using more energy (increasing the density of the particles in the compressions and decreasing it in the rarefactions).
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baam
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gold
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rocket
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thief
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15
A classmate says that higher pitch music notes are irritating because they vibrate in your ear faster. Which part of that statement is fact and which is opinion?
Irritating= opinion; vibration speed= fact.
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seesaw
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seesaw
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fairy
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thief
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What is echolocation?
Sound waves emitted by animals, such as bats, that bounce off objects and tell the animal their location.