Waves and Sound

Sound waves

• require a medium.

• are unrelated to vibrations.

• cannot travel through liquids.

• can travel in a vacuum.

Tags

NGSS.MS-PS4-2

Sound waves are

• transverse waves.

• longitudinal waves

• circular waves.

• polarized waves.

Tags

NGSS.MS-PS4-1

The crest is in position

• A

• B

• C

• D

Tags

NGSS.MS-PS4-1

The trough is in position

• A

• B

• C

• D

Tags

NGSS.MS-PS4-1

Amplitude is measured at position

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS4-1

Wavelength is measured at position

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS4-1

The ____________________ is the number of vibrations that occur in a 1-second time interval.

• amplitude

• frequency

• period

A wave that causes the particles of the medium to vibrate perpendicularly to the direction the wave travels is called a(n) ____________________.

• transverse wave

• longitudinal wave

• circular wave

• heat wave

Tags

NGSS.MS-PS4-1

A sound wave that is 0.66 meters long and has a frequency of 520 Hz moves with a speed of ___________. (speed = frequency x wavelength )

• 250 m/s

• 434 m/s

• 343 m/s

• 460 m/s

Tags

NGSS.MS-PS4-1

A sound wave that is 1.2 meters long and has a frequency of 284 Hz moves with a speed of ___________. (v = f λ )

• 343 m/s

• 434 m/s

• 520 m/s

• 280 m/s

Tags

NGSS.MS-PS4-1