Light and Optics Unit Review

Complete the sentences for the 4 main properties of light

• bend

•  Light is _______

• reflected

• Light travels in a ________

• a form of energy

• Light can be _______

• straight line

• Light can _____

Tags

NGSS.MS-PS4-2

Define refraction of light.

• The reflection of light off a surface

• The bending of light as it passes from one medium to another.

• The absorption of light by a medium

• The emission of light from a source

Tags

NGSS.MS-PS4-2

What can you see in a room that has no visible light?

• Only bright colored objects
• Only dark colored objects
• Only white objects
• Nothing at all

Tags

NGSS.4-PS4-2

What is this

• opaque
• transparent
• translucent

Tags

NGSS.MS-PS4-2

The water is what

• opaque
• translucent
• transparent

Tags

NGSS.MS-PS4-2

When ALL of the light is blocked

• translucent
• opaque
• transparent

Tags

NGSS.MS-PS4-2

The bouncing off of light rays from the surface of an object such as a mirror or other shiny surface is called:

• mirror
• laser
• reflection
• refraction

Tags

NGSS.MS-PS4-2

Light travels in ​ (a)   lines.​

• straight
• diagonal
• wavy
• zigzag
• broken

If a light ray is shown on a plane mirror with an angle of incidence of 45 degrees, what is the angle of reflection?

• 15
• 30
• 45
• 90

Light is a form of

• food

• energy

• particles

• transformation

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3