Lesson Check: Sound and Light

Astronauts in space cannot talk to each other unless they use a radio to speak back and forth. Why is this?

• The air is too thick to carry sound waves efficiently.

• The force of gravity is too strong to allow sound waves to travel.

• There is no air in space, so there is no medium to carry sound waves.

• It is very loud in space, so they can only hear each other through a radio.

A fire truck's siren and flashing lights are examples of and energy. Choose two answers.

• heat

• light

• sound

• chemical

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

To stop a drum from producing sound, you would

• hit it harder

• hit it softer

• stop it from vibrating

• place it in water

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Sound waves travel the fastest through

• solids

• liquids

• gases

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Why are sounds not heard in space?

• Space is too cold for sound waves to travel.

• There is too much matter to travel through in space.

• Space is a vacuum with few particles to travel through.

• Energy cannot travel in space.

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NGSS.MS-PS4-2

Fill in the blank

Sound ____travel through outer space.

• does

• does not

How does sound energy travel?

• in strings

• in beams

• in pulses

• in waves

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A form of energy that allows you to see objects is

• heat

• light

• solar energy

• vision

Light travels as tiny particles of energy.

• True

• False

A pom-pom launcher________

• transfers kinetic energy to thermal energy

• transforms kinetic energy to sound energy

• transforms stored energy to energy of motion

• transfers energy of motion to stored energy

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