Properties of Light

What is the process called when light bends as it passes from one medium to another?

• Refraction

• Reflection

• Diffusion

• Absorption

Tags

NGSS.MS-PS4-2

Refer to the diagram showing a laser emitting a straight beam of light. What property of light is demonstrated in the image?

• Light bends around corners

• Light travels in straight lines

• Light moves in circles

• Light stops at obstacles

How fast does light travel?

• 30,000 kilometres per second

• 300,000 kilometres per second

• 3,000 kilometres per second

• 3,000,000 kilometres per second

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

At the speed of light, how many times can light go around the world in one second?

• 8 times

• 1 time

• 100 times

• 20 times

Tags

NGSS.MS-PS4-1

Light travels much faster than sound. For example: Thunder and lightning start at the same time, but we will see the ______ first.

• lightning

• thunder

• rain

• clouds

We see things because they reflect light into our eyes. According to the diagram, what is the correct order in which light travels for us to see an object?

• Object → Sun → Eyes

• Sun → Object → Eyes

• Eyes → Object → Sun

• Sun → Eyes → Object

A luminous object is one that ________ light.

• produces

• reflects

• absorbs

• blocks

A non-luminous object is one that ________ light.

• reflects

• emits

• absorbs

• produces

Tags

NGSS.MS-PS4-2

Which of the following is a luminous object?

• The Moon

• The Sun

• Mirrors

• People

Which of the following is a reflector?

• Lamps

• Lasers

• Mirrors

• Campfires

Tags

NGSS.MS-PS4-2