Light and Optics Mid-Unit Review Grade 8 Clarke Daniel

Material that allows light to pass through allowing you to see "clearly" to the other side

• opaque
• translucent
• transparent

Light is a form of 

• energy
• radiation
• reflection

Light travels in a straight line

• True
• False

What does refract mean?

• To shrink
• To bend
• To widen
• To enlarge

Light can travel through empty space.

• True
• False

You have cool glow-in-the-dark stickers of Mickey Mouse. This is an example of 

• fluorescence
• chemiluminescence
• phosphorescence 
• incandescence

Tissue paper is __________?

• opaque
• transparent
• translucent 

Luminous means...

• Gives out its own light

• Reflects light from other things

The picture here is an example of...

• artificial light called bioluminescence
• artificial light called chemiluminescence
• natural light called bioluminescence
• natural light called chemiluminescence

The illustration shows a light ray striking an object.
In the illustration, the light ray striking the object is-

• absorbed
• stopped
• reflected
• refracted