Behavior and 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

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

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

As the wavelength of sound increases, the frequency ___.

• increases

• decreases

• stays the same

• is higher pitched

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

The spread apart regions of particles in a sound wave are called ____.

• rarefactions

• compressions

• frequencies

• wavelengths

The pressed together regions of particles in a sound wave are called ____.

• rarefactions

• compressions

• frequencies

• wavelengths

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