G5 Ch6 L2.2 Sound: Pitch, Volume, and Echolocation | Baamboozle - Baamboozle

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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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What is echolocation?

Sound waves emitted by animals, such as bats, that bounce off objects and tell the animal their location.

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What is pitch?

How high or low a sound is.

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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

Lose 25 points!

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Win 25 points!

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rocket

Go to first place!

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lifesaver

Give 10 points!

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What is "sound navigation and ranging" commonly called? How does it work?

Sonar; sound wave emission + timing device to determine object locations.

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What is the Doppler Effect?

A change in frequency due to moving toward or away from a sound wave.

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What is amplitude?

The height of sound waves. (or: The air density within compressions and rarefactions vs outside of them)

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Give 25 points!

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shark

Other team loses 25 points!

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thief

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seesaw

Swap points!

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fairy

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Win 5 points!

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baam

Lose 25 points!

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What is volume and how is it measured?

The loudness of sound; decibels.

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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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What is frequency?

The number of times an object vibrates per second.

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Give 15 points!

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star

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gift

Win 10 points!

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lifesaver

Give 20 points!

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