Sound Waves
Measuring Sound
Sound Moves
This and That
Music
100

In order for sound to occur, this must be present.

What is matter or a medium?

100

This term refers to the number of waves that occur during a second.

What is frequency?

100
What happens when a sound wave hits a soft surface
What is absorption?
100
Two animals that use echolocation
What are bats and whales [and/or porpoises]?
100

Musical instruments do this to produce sound

What is vibrate?

200
In a sound wave, this is an area of tightly packed molecules.
What is compression?
200

 The amount of energy in a compression

What is amplitude?

200

The medium through which sound travels the fastest.

What is a solid?

200
This animal makes the loudest sound at 188 decibels
What is a blue whale?
200

Instruments that produce sound through vibrating strings (name at least two)

What are violin, viola, cello, piano?

300

These can be compared to ripples that spread out in every direction when a pebble is tossed in a pool of water.

What are sound waves.

300
The distance between two compressions of a sound wave
What is a wavelength?
300
If you were to shout down from the top of the Grand Canyon, you would hear the sound of your voice come back to you.
What is an echo?
300
A means of communication by humans using dots and dashes, first developed for use of the telegraph in the 1840s
What is Morse code?
300

Instruments that produce sound by having air blown through them (name at least 2)

What are flute, clarinet, trumpet, trombone?

400
This is the rapid back-and-forth motion of molecules.
What is vibration?
400
The unit by which loudness is measured
What is decibel?
400
The state of matter in which sound is transmitted slowest
What is a gas?
400
What ships and submarines use to detect and locate underwater objects
What is SONAR?
400

Name an instrument that produces low pitch.

What are piano, cello, bass, bass trombone, tuba
500

Sound waves transfer this kind of energy.

What is mechanical energy?

500
The unit by which the highs and lows of sound are measured
What is hertz?
500
A place where no sound can occur
What is space [or a vacuum]?
500
The apparent change in the length of a sound wave caused by the motion of the source of sound, heard as a change of pitch [think ambulance]
What is the Doppler effect?
500

Name an instrument that produces high pitch.

What are Piccolo, Piano, Violin, Xylophone?

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