S8P4 D

Sarah and Maria made a telephone using two cans and a string. It was a very long string. Maria went upstairs in her house and Sarah stayed downstairs. Maria spoke softly into the can. "I can hear you!' Sarah said back. How can this happen?

• Sound waves travel through a vacuum.

• Sound waves travel from high to low.

• Sound waves travel through solids like the string.

• Maria talked so loudly that Sarah could hear her without the phone.

Tags

NGSS.MS-PS4-2

As a ray of light becomes brighter, its corresponding light wave, shown here, will increase in amplitude, making it look MOST like which wave?

• A

• B

• C

• D

Tags

NGSS.MS-PS4-1

The wave pictured represents a sound wave. Which label along the wave represents a sound with the LOWEST intensity?

• A

• B

• C

• D

Tags

NGSS.MS-PS4-1

Looking at waves A and B. Which description correctly describes the waves?

• Wave A has twice the energy because it has a frequency twice as large.

• Wave A has twice the energy because it has an amplitude twice as large.

• Wave B has twice the energy because it has an amplitude twice as large.

• Waves A and B gave the same energy because they have the same amplitude.

Tags

NGSS.MS-PS4-1

The energy supplied to a speaker is increased. What will happen to the sound the speaker produces?

• The sound will be lower pitch.

• The sound will become a high pitched squeal.

• The sound will be louder or greater amplitude.

• The sound will remain unchanged if the speaker is not changed.

Tags

NGSS.MS-PS4-1

If the above two waveforms were sound waves, we would hear the ___________ wave louder. If the above two waveforms were light waves, we would see the ________ wave dimmer.

• red, red

• green, red

• red, green

• green, green

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

All of the waves in the electromagnetic spectrum are _______ waves.

• compression

• longitudinal

• mechanical

• transverse

Tags

NGSS.MS-PS4-1

Sound waves are mechanical waves in which the particles in the medium vibrate in a direction parallel to the direction of energy transport. Identify another name for this type of wave motion.

• transverse waves

• pressure waves

• longitudinal waves

• electromagnetic waves

What do we call the distance labeled from A to B and what could we do to the note played on an instrument to change that distance?

• From A to B is known as the wavelength and changing the pitch of the note will change its length.

• From A to B is known as the amplitude and changing the loudness of the note will change its length.

• From A to B is known as the wavelength and changing the amplitude of the note will change its length.

• From A to B is known as the wave height and changing the amplitude of the note will change its length.

Tags

NGSS.MS-PS4-1

The crest of a transverse wave is BEST shown by letter

• A

• B

• C

• D

Tags

NGSS.MS-PS4-1