chapter 12 lesson 3

A sound that bounces off a surfacelike a mountain could produce an ________.

• loud sound

• echo

• repeat

• quiet sound

Tags

NGSS.MS-PS4-2

A back and forth movement of matter

• volume
• vibration
• pitch
• frequency

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Sound does not travel in space because

• Space is too far away.
• There is no matter in space.
• Space is the final frontier
• Space has planets.

Tags

NGSS.4-PS3-2

NGSS.4-PS4-1

Why is the school library covered with carpet?

• So everyone can make a lot of noise
• to help absorb sounds to keep it quiet
• because it looks good
• to help absorb sounds so it can stay noisy

A sound that bounces off a surface is called an ________.

• loud sound

• reflection

• repeat

• quiet sound

Tags

NGSS.MS-PS4-2

When sound waves cause the eardrum to vibrate, these vibrations are immediately passed on to the_________.

• outer ear and ear canal
• inner ear
• tiny hairs
• three small bones in the middle ear

Which part of the ear acts as the sound collector?

• outer ear
• ear canal
• middle ear
• inner ear

Where is a place a person would hear no sound?

• in a cave
• in a forest
• in space
• in water

What happens in the cochlea. a snail shaped organ?

• Sound waves are captured.

• Sound waves move deeper into the ear.

• Sound waves are reflected.

• Sound waves are converted into nerve impulses.

Tags

NGSS.MS-PS3-5

Where does HEARING (interpreting the nerve impulses) take place?

• outer ear
• middle ear
• inner ear
• brain

Tags

NGSS.MS-LS1-8