Light and Sound

not letting light pass through

• opaque

• translucent

• transparent

• frequency

Tags

NGSS.MS-PS4-2

Which surface would bounce back almost all the light waves that hit it?

• clear glass

• frosted glass

• mirror

• water

Tags

NGSS.MS-PS4-2

The distance between crests or troughs is called _______________.

• frequency

• wavelength

• amplitude

• infrasonic

Tags

NGSS.HS-PS4-1

The maximum distance a wave vibrates from its rest position is called ______________.

• amplitude

• frequency

• wavelength

• crest

Tags

NGSS.MS-PS4-1

During a fireworks show, a family sees the spray of sparkles from a firework, and a moment later, they hear the pop. Which of these best explains why the pop and spray do not seem to occur at the same time?

• Light and sound travel through air.

• Sounds travels through a vacuum.

• Sound travels slower than light.

• Light and sound travel at the same speed.

Because light travels faster than sound, you see ​ (a)   before you hear thunder

• lightning

• rainbow

• fireworks

High pitches are produced by objects vibrating _______________.

• quickly

• slowly

Lightning heats the air so much that the air expands. The sound created by the sudden expansion and contraction is called _______________________.

• expansion

• thunder

• radar

• lightning

Why would a cymbal stop making noise if you put your hand on it after it is struck?

• it would be broken

• the pitch would be too low to hear

• other instruments would be playing

• it would stop vibrating so the sound would stop

Tags

NGSS.MS-PS4-2

Which is the best description of a sound wave when the pitch of the sound is very high?

• It has a low frequency

• It has a high frequency

• It has no wavelength

• It has no frequency