Sound Waves Question Preview (ID: 36353)


6th Grade Sound Waves. TEACHERS: click here for quick copy question ID numbers.

which explain why a train moving toward you sounds louder than a train moving away from you?
a) doppler effect
b) trains give off sound from the front only
c) train conductors are louder as they approach then quiet down after they pass
d) no one understands this phenomenon

why does sound travel better in the summer time then in the winter time?
a) higher temperature
b) better frequency
c) louder amplitudes
d) lower pressure

Why did Matt see the lighting strike before he heard the thunder?
a) Light waves are electromagnetic waves that travel much faster than mechanical waves, such as the sound waves of thunder
b) Thunder always takes 15 seconds to travel through the air after lightning strikes.
c) Light waves from the lightning and sound waves from the thunder moved through different media.
d) The conditions in the air at the time allowed light waves to move faster than the sound waves he heard as thunder

Which of the following is not a way in which echolocation is used?
a) sending messages over telephone lines
b) flying bats avoiding trees and houses at night
c) dolphins finding fish in deep water
d) mapping the the ocean floor

_____ is how high or low you think a sound is.
a) pitch
b) sound
c) amplitude
d) frequency

Loudness is expressed in ________
a) decibles
b) loudness
c) amplitude
d) volume

_______ is the combination of two or more waves, which results in a single waves.
a) interference
b) residence
c) frequency
d) decibles

An __________ is a sound wave that is reflected by hard surfaces.
a) echo
b) soft sound
c) transverse sound
d) loud sound

Which material best absorbs sound waves in a room?
a) curtains and carpet
b) hard wood floor
c) brick walls
d) cement floor

A ________ is an example of a longitudinal wave.
a) soundwave
b) transverse wave
c) electromagnetic
d) loud wave

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