Chapter 6 Science Review

What characteristic of sound helps us identify different people's voices?

• quality

• volume

• source

• pitch

Rough, soft, or uneven surfaces ______ sound waves.

• reflect

• absorb

• vibrating

• source

Tags

NGSS.MS-PS4-2

The ear collects sound waves and sends _________ to the brain.

• hormones

• sound

• messages

• signals

Tags

NGSS.MS-LS1-8

What characteristic of sound depends on how fast the source of sound is vibrating?

• volume

• echo

• quality

• pitch

Sound waves spread out as they move farther away from the ________ of their vibrations.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

A sound wave that reflects clearly enough to be heard again is called a(n) ________.

• messages

• source

• echo

Tags

NGSS.MS-PS4-2

Sound waves travel at __________ through different kinds of matter.

• frequency or speed

• the same speed

• all directions

• different speeds

Tags

NGSS.MS-PS4-2

Large, hard, smooth surfaces __________ sound waves.

• refract

• reflect

• echo

• absorb

Tags

NGSS.MS-PS4-2

Form of energy that you can hear

• volume

• sound

• pitch

• quality

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Sound waves move outward from their source in __________.

• waves

• all directions

• horizontal

• ascending