Chapter 2 Sound Test

Question 1

What is a Medium?

Answer 1

A medium is a substance through which sound can travel. It can be a solid, liquid, or gas, but not a vacuum. Examples are air, metal, glass, water, and stone.

Question 2

How can you protect your ears against sound damage?

Answer 2

There are several ways you can protect your ears, including: moving to an area further away from the sound source, wearing ear plugs or ear muffs, or turning music volume down to a lower setting.

Question 3

Does a longer string or shorter string produce a lower fundamental sound note?

Answer 3

A longer string produces a lower note.

Question 4

What is sound quality?

Answer 4

Sound quality is the blending of pitches through interference.

Question 5

Describe how amplitude affects a sound’s loudness.

Answer 5

The amplitude of a sound determines the loudness. The greater the amplitude, the louder the sound is perceived. Loudness is how well a sound can be heard measured in decibels. Pain from sound begins at around 120 decibels.

Question 6

How is a sound’s pitch determined?

Answer 6

The frequency of a sound wave determines pitch. Frequency is measured in Hertz.