What is the Doppler Effect?

• a change in volume as sound bounces off walls

• a change in wave frequency caused by motion

• a wave bouncing off an object

• a sudden stop in all wave movement

Tags

NGSS.HS-PS4-1

What happens to the pitch of a sound as a siren moves toward you?

• it becomes lower

• it stays the same

• it becomes higher

• it disappears

What does a red shift in light tell astronomers?

• a star is not moving

• a star is moving toward earth

• a star is moving away from earth

• A star is changing color

Tags

NGSS.HS-ESS1-2

What is the function of the pinna in the ear?

• turns vibrations into electrical signals

• vibrates when sound hits

• collects sound and channels it into the ear

• sends sound directly into the brain

Which part of the ear contains the cochlea?

• outer ear

• middle ear

• inner ear

• eardrum

What is the role of the auditory nerve?

• to amplify sound

• to create sound

• to carry sound into the brain

• to protect the ear from loud noises

Which type of seismic wave travels the fastest?

• surface wave

• S-wave

• P-wave

• T-wave

How do S-waves move through the Earth?

• back and forth in the same direction as the wave

• in circles

• up and down

• side to side, perpendicular to wave direction

Tags

NGSS.MS-PS4-2

What do seismographs measure?

• wind speed

• temperature changes

• earth's magnetic field

• seismic wave activity from earthquakes

What causes earthquakes?

• lightning

• ocean waves

• energy released from moving tectonic plates

• volcanoes only

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS3-2