Sound Waves

Front

The number of wavelengths that pass a point each second

Back

frequency

Front

How high or low a sound is; depends on the frequency (greater frequency= higher _____________)

Back

pitch

Front

When the sound source moves, the frequency changes (e.g., police car siren sounding lower pitch after the car passes).

Back

Doppler Effect

Front

The part of a longitudinal wave where the particles of the medium are close together.

Back

compression

Front

A part in a longitudinal wave where the particles are spread apart: compression, rarefaction, crest, trough

Back

rarefaction

Front

A wave that requires a medium through which to travel

Back

mechanical wave

Front

Sound waves are what type of wave?

Back

Longitudinal

Front

If the distance represented by the letter A were increased, how would it change the way the sound was heard?

Back

The sound would be louder.

Front

True or False: Sound travels better through solids than through liquids

Back

True

Front

The illustration shows a light ray striking an object. In the illustration, the light ray striking the object is- absorbed, stopped, reflected, refracted

Back

reflected