Science Light and Sound

Which picture is showing the correct shadow ?

• first picture

• second picture

Tags

NGSS.4-PS4-2

NGSS.5-ESS1-2

You blow a balloon and hold it against your ear. You ask a friend to talk in the balloon . How would you hear the noise ?

• very faint

• Louder

Tags

NGSS.MS-PS4-2

Which of these is a source of light ?

• ice

• fan

• light bulb

Which of these is a NATURAL light source ?

• oil lamp

• Candles

• The sun

Tags

NGSS.5-PS3-1

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.

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

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

Tags

NGSS.MS-PS4-2

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-PS3-5

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

• lightning

• rainbow

• fireworks