Waves and Sound

An earthquake wave travels from its source underground to the ocean floor. What will happen to the wave when it meets the water in the ocean?

• It will stop

• It will move faster

• It will move slower.

• It will continue to move at the same speed.

Tags

NGSS.MS-PS4-2

Through which of these media do sound waves travel the fastest?

• rock

• hot air

• seawater

• foam

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NGSS.MS-PS4-2

Mei knows the wavelength and the frequency of a wave. How will she use this information to calculate the speed of the wave?

• Add frequency and wavelength.

• Divide frequency by wavelength.

• Divide wavelength by frequency.

• Multiply wavelength and frequency.

Tags

NGSS.HS-PS4-1

A wave passes through a medium. The particles in the medium change their position. Which statement best describes how the position of a particle changes as the wave progresses?

• The particle moves in one direction, then the opposite, and returns to its original position.

• The particle moves perpendicular to the direction of the wave into a new position.

• The particle moves parallel with the direction of the wave into a new position.

• The particle vibrates continually around its original position.

All mechanical waves have which of the following in common?

• Mechanical waves are transverse.

• Mechanical waves are longitudinal.

• Mechanical waves do not require a medium to move.

• Mechanical waves must progress through a medium.

A radio station transmits to a receiving antenna. The radio wave sent is a

• sound wave.

• torsional wave

• longitudinal wave.

• transverse wave.

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

NGSS.HS-PS4-5

A few boys are sledding on snow in their favorite park. They notice that it is harder to hear someone shouting from the top of the hill to the bottom than it is in the summertime. What factor is most likely affecting the sound of their shouting?

• altitude

• frequency

• pressure

• temperature

Which of these is the best example of resonance?

• a bat uses ultrasonic waves to locate its next meal

• a telephone changes sound waves into electric signals

• a guitar body vibrates from the sound of a plucked string

• a jet produces a sonic boom as it breaks the sound barrier

What role does the inner ear play in hearing?

• captures sound waves

• transmits sound waves from air to fluids

• converts sound waves into electrical signals

• removes high and low sound waves that are harmful

For what purpose do bats use ultrasonic waves?

• sonar

• ultrasound

• echolocation

• Doppler effects