Sources of Light

A source of light is ............

• an object which reflects light

• an object which emits its own light

• an object which is shining by using a different source of light

• None of the above

A luminous object ......

• emits light on its own

• reflects light

• doesn't emit light on its own

• is not a source of light

Tick the list of artificial sources of light.

• bush fire, torch, lamp, candlelight

• fireworks, laser, lighter, light bulb

• laser, stars, moon, lamps

• candlelight, moon, fire, sun

Tags

NGSS.MS-ETS1-1

Sun is a natural source of light.

• True

• False

Tags

NGSS.MS-ESS1-1

Tick the list of natural sources of light.

• light bulb, Sun, candlelight, torch

• fireflies, stars, torch, moon

• jellyfish, bush fires, lamp, candlelight

• Sun, stars, lightning, fireflies

An electric bulb is a/an _____ source of light.

• artificial

• natural

Every star produces its own light.

• True

• False

Which of these is not a natural source of light?

• 
• 
• 
• 

Tags

NGSS.4-PS3-2

Incandescent objects produce light because...

• they are cold.

• they are artificial.

• they are natural.

• they are hot.

Tags

NGSS.MS-PS3-5

Which of the following is a natural source of light?

• Sun

• LED bulb

• Flashlight

• Candle

Tags

NGSS.MS-ESS1-1