general
sound waves and characteristics
reflection and absorption
random
100

what is the to and fro movement of particles called?

vibrations 


100

true or false, crest is the highest point in a wave

true


100

the reflection of sound causes ....?

echoes

100

songs with the word 'song' in its title

many answers 

200

true or false, sound travels faster in air than in liquids

false
200

unscramble this characteristic:

WVLEEHTAGN

wavelength 

200

true or false, clothes are good reflectors of sound

false

200

what kind of instrument does Taylor Swift usually play?

(wind, percussion...) 

guitar - stringed instrument 

300

can sound travel on the moon?

no (vacuum)

300

define amplitude

maximum displacement of a wave

300

what is the vibrating part of a percussion instrument?

the membrane 

300

do you remember which instrument I play?

guitar 

400

how does sound travel?

longitudinal waves


400

a sound wave with high frequency will have high .....?

pitch 

400

in 30 seconds, describe how SONAR works.

a device that sends a signal underwater which is reflected from the floor, the time is recorded and the distance is accordingly calculated

400

in the beginning of the class, I had asked how many of you play instruments, can you recall how many people did play?

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