6P1.3 Sound Waves

The diagram below shows the movement of two sound waves.

Which statement best explains how Wave 1 compares with Wave 2?

• Wave 1 has a louder sound.

• Wave 1 has a softer sound.

• Wave 1 has a higher pitch.

• Wave 1 has a lower pitch.

Tags

NGSS.MS-PS4-1

The table below shows the speed of sound at several different air temperatures.

How does temperature affect the speed of sound?

• The colder the air, the faster sound moves.

• The warmer the air, the faster sound moves.

• The warmer the air, the slower sound moves.

• Air temperature has no effect on the speed of sound.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Sound waves travel fastest in

• air.

• iron.

• water.

• a vacuum.

Tags

NGSS.MS-PS4-2

Sonar equipment sends waves into deep water and measures the

• time delay of the reflected waves.

• refraction of the transmitted waves.

• direction of the transmitted waves.

• interference of the transmitted and reflected waves.

Tags

NGSS.MS-PS4-2

Elizabeth uses a specific type of whistle to call her dogs. The noise made by the whistle is heard by the dogs but cannot be heard by the human ear. Which statement BEST describes why humans cannot hear the sound made by the whistle?

• The speed of the sound is too fast.

• The amplitude of the sound is too low.

• The frequency of the sound is too high.

• The wavelength of the sound is too long.

When a spoon hits a table, it makes a loud sound. When the spoon hits a soft cushion, it does not make a sound. What is the difference between the table and the cushion that accounts for the sound?

• The table is more reactive than the cushion.

• The table vibrates more than the cushion.

• The table is more insulated than the cushion.

• The table has more potential energy than the cushion.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

A light wave (1) passes through a medium boundary resulting in a reflected wave (2) and a transmitted wave (3).

How does wave 3 differ from wave 1?

• Wave 3 has a faster speed than wave 1.

• Wave 3 has a lower intensity than wave 1.

• Wave 3 has a higher frequency than wave 1.

• Wave 3 has a shorter wavelength than wave 1.

Tags

NGSS.MS-PS4-2

To change the pitch of the notes she plays, a musician presses the strings along the guitar neck.

When moving her fingers to different positions on the guitar neck, she changes the

• length of the neck.

• width of the string.

• volume of the sound.

• frequency of the string.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

A doorbell circuit converts electrical energy into mechanical energy. The mechanical energy is in the form of vibrations that ultimately produce

• chemical energy.

• thermal energy.

• radiant energy.

• sound energy.

What would happen to someone who has damaged the tiny hairs in the cochlea of the inner ear?

• The person would be blind.

• The person would have hearing loss.

• The person would be unable to speak.

• The person would be unable to perceive color.

Tags

NGSS.MS-LS1-8