Light Pretest

Light travels continuously until it hits an object. In what path does light travel?

• straight line
• bent line
• spiral line
• curved line

When light hits an object, it is sometimes absorbed by that  object. What is the process that describes when light bounces off an object?

• refraction
• rotation
• reflection
• diffraction

Which of these is the best example of reflection?

• light bounces off a cats fur
• Air causes light to slow down
• Light passes through a clear plastic bottle.
• A rock absorbs light and becomes warm.

Which material would reflect the least light?

• coin
• mirror
• metal spoon
• plastic spoon

When light hits a shiny object it

• is absorbed by the object
• is reflected by the object
• is refracted by the object
• is unchanged by the object

Shadows form when light is

• blocked by an object
• refracted by an object
• reflected by an object
• transmitted through an object

Which of the following is the best example of a transparent material?

• metal
• waxed paper
• water
• wood

Which of the following is the best example of an opaque material?

• wood
• frosted glass
• tissue paper
• clear plastic

Which of the following is the best example of a translucent material?

• rubber
• glass
• stone
• waxed paper

Gary is looking at himself in a plane mirror.  He raises his left hand and then walks toward the mirror.  What will his reflection do?

• Raise its right hand and walk toward Gary
• Raise its right hand and step back from Gary
• Raise its left hand and walk toward Gary
• Raise its left hand and step back from Gary