Mechanical Wave Interactions / Sound

A sound wave takes about 0.03 s to move through a material that is 10.3 m long. What is the material?

• air

• glass

• iron

• water

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

You are in a sound-proofed hallway. Someone standing around the corner from you speaks and you hear them. Which claim offers the best evidence and reasoning for this phenomenon?

• Sound is not affected by types of materials, because sound can travel though solids, liquids, and gases.

• Sound waves are absorbed by the sound-proofed walls and then transmitted through the wall to your ear.

• Sound waves diffract so even though the walls do not reflect the sound wave, the sound wave can still travel to your ear.

• Sound-proof walls allow sound waves to reflect all of the sound that is directed toward them. So the sound must bounce off them and go to your ear.

Tags

NGSS.MS-PS4-2

Sound travels faster in ________________ than in liquids

• solids

• gas

• water

• air

Movie theaters use sound proofing to reduce echoes. Soundproofing materials are designed to the sound.

• Absorption

• Transmission

• Diffraction

• Reflection

Tags

NGSS.MS-PS4-2

Sound travels faster at higher temperatures

• True

• False

Tags

NGSS.MS-PS1-4

NGSS.MS-PS4-1

Which of the following is NOT a way that waves interact with matter?

• Waves can be reflected by matter.

• Waves are affected by gravity.

• Waves can change direction when they travel from one material to another.

• As waves pass through matter, some of the energy they carry can be transferred to matter.

Tags

NGSS.MS-PS4-2

How are sound waves like ripples in a pond?

• They are both types of electromagnetic radiation.

• They travel faster in water than they do in the air.

• They radiate outward from a central point.

• They have the same wavelengths.

Tags

NGSS.MS-PS4-1

Place the following events in sequence: A) Your eardrum begins vibrating; B) Electrical impulses travel along nerve fibers; C) The hammer, anvil, and stirrup begin moving

• A, B, C

• B, C, A

• B, A, C

• A, C, B

Sound Intensity is also called

• Frequency

• Pitch

• Tone

• Amplitude

A sound with a high frequency has a _____ pitch. A sound with a ____ frequency has a low pitch.

• high, low
• low, high
• medium, high
• high, medium