Y7 sound waves

Front

What travels through solids fastest because the molecules are closer together? Options: speed of sound, wavelength, frequency, amplitude

Back

speed of sound

Front

Material (matter) through which a wave travels

Back

medium

Front

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

Back

pitch

Front

The part of a longitudinal wave where the particles of the medium are close together. Options: rarefaction, compression, crest, trough

Back

compression

Front

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

Back

rarefaction

Front

What might happen to an object sitting on top of a speaker if loud music is played through the speaker?

Back

The object could move due to the vibrations of the sound.

Front

How does sound travel?

Back

in waves

Front

Why does sound travel most quickly through a solid?

Back

In solids, the atoms (particles) are closest together, which allows the vibrations to travel rapidly from one to another through the object.

Front

Why can't sound travel through outer space?

Back

There is almost no matter in outer space, so the vibrations have no way to travel through the atmosphere. There is nothing to carry the sound waves through space.

Front

If you pluck a guitar string, it vibrates and creates a sound. In order to stop the sound, you could...

Back

place your hand on the string to stop the vibration.