Sound Ch 9 BJU Press

Front

What is timbre in relation to sound?

Back

Timbre is the quality or color of a sound that distinguishes it from other sounds, not how high or low a sound is.

Front

What is an oscilloscope used for?

Back

An oscilloscope is a machine that changes sound waves into electrical pictures seen on a graph.

Tags

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Front

Through which medium do most sounds travel?

Back

Most sounds we hear travel through air.

Tags

NGSS.MS-PS4-2

Front

What is sonar?

Back

Sonar is a type of echolocation that locates items underwater.

Tags

NGSS.MS-PS4-2

Front

Do sound waves carry particles of matter with them?

Back

No, sound waves do not carry particles of matter with them; they cause particles to vibrate.

Front

What is the definition of sound waves?

Back

Sound waves are vibrations that travel through a medium (like air, water, or solids) and can be heard when they reach a person's or animal's ear.

Tags

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Front

What is the relationship between frequency and pitch?

Back

Frequency is the number of vibrations per second, and it determines the pitch of the sound; higher frequency means a higher pitch.

Tags

NGSS.HS-PS4-1

Front

What is the speed of sound in air at room temperature?

Back

The speed of sound in air at room temperature (20°C or 68°F) is approximately 343 meters per second (1,125 feet per second).

Tags

NGSS.MS-PS4-2

Front

What is echolocation?

Back

Echolocation is a process used by some animals to locate objects by emitting sound waves and interpreting the echoes that return.

Front

What factors affect the loudness of a sound?

Back

The loudness of a sound is affected by the amplitude of the sound wave; larger amplitudes produce louder sounds.

Tags

NGSS.MS-PS4-1