UNIT 5 SOUND, LIGHT AND HEAT

... travels in straight line

• Sound

• Heat

• Light

Sound waves must travel through a .....

• medium

• vacuum

• surface

Tags

NGSS.MS-PS4-2

When light hits a ..... surface, it reflects in all directions.

• smooth

• rough

• coloured

Tags

NGSS.MS-PS4-2

Light cannot pass through objects that are ....

• transparent

• opaque

• translucent

Tags

NGSS.MS-PS4-2

..... changes the state of matter.

• Sound

• Heat

• Light

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

..... is when a liquid changes to a gas

• Melting

• Expansion

• Evaporation

Tags

NGSS.MS-PS1-4

Sound travels faster through air than through water.

• True

• False

Tags

NGSS.MS-PS4-2

A mirror is an example of ...

• reflection

• refraction

• absorption

Tags

NGSS.MS-PS4-2

Natural light sources …

• come from the sun, the Northern lights or plankton.

• are transformed from another chemical or electrical energy.

• are man-made.

Light travels at about ...

• 300.000 km/s

• 3,000.000 km/s

• 30.000 km/s

• 3.000 km/s