Properties of Sound Waves

If the wavelength of a sound wave is increased, what would happen to the sound made by this wave?

• It would have a lower pitch

• It would get softer

• It would get louder

• It would have a higher pitch

Tags

NGSS.HS-PS4-1

If the wavelength of a sound wave is decreased, what would happen to the sound made by this wave?

• It would have a lower pitch

• It would get softer

• It would get louder

• It would have a higher pitch

Tags

NGSS.HS-PS4-1

If the amplitude of a sound wave is decreased, what would happen to the sound made by this wave?

• It would have a lower pitch

• It would get softer

• It would get louder

• It would have a higher pitch

Tags

NGSS.MS-PS4-1

If the amplitude of a sound wave is increased, what would happen to the sound made by this wave?

• It would have a lower pitch

• It would get softer

• It would get louder

• It would have a higher pitch

Tags

NGSS.MS-PS4-1

How do the air molecules vibrate in a sound wave?

• in the same path as the wave

• the air molecules themselves do not move

• at right angles to the wave

• in all directions

The number of waves that occur in a time interval is referred to as ___.

• frequency

• compression

• amplitude

• speed

Tags

NGSS.HS-PS4-1

In the sound wave, what are the correct labels for areas X and Z?

• X = compression, Z = rarefaction

• X = trough, Z = crest

• X = crest, Z = trough

• X = rarefaction, Z = compression

Tags

NGSS.MS-PS4-1

Which example is creating a sound wave with the shortest wavelength?

• Example X has the shortest wavelength

• Example Y has the shortest wavelength

• Examples X and W have the shortest wavelengths

• Examples W and Y have the shortest wavelengths

Tags

NGSS.MS-PS4-1

As sound waves travel through air, they cause air molecules to ___.

• vibrate

• bend

• lose energy

• be absorbed

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Which labeled sound wave produced from the train whistle has the highest frequency?

• 3

• 2

• 1

• 4

Tags

NGSS.HS-PS4-1