Light Post Test Review

What happens when light hits an object you can see?

• The light turns corners.
• The light curves around the object.
• The object reflects the light.
• The light and the object do not form a shadow.

Why does a ruler with one end in the air and one end under water appear bent?

• Light moves through air faster than it moves through water.
• The light is reflected from the ruler moves in a curved path.
• Light moves through water at the same speed as it moves through air.
• Light in the air is brighter than light in the water.

Through what kind of matter does light move fastest?

• liquids
• air
• matter that is lighter in color
• matter that is in larger objects 

Why does the reflection of the trees in the lake appear blurry?

• The light that hits the water is reflected in different directions.
• The light that hits the water is reflected at different speeds.
• The light is reflected from the uneven bottom of the lake.
• The light that is reflected from the trees is refracted by the lake.

What is a property of a transparent object?

• Almost all of the light rays that reach it are scattered.
• Almost all of the light rays that reach it are absorbed.
• Almost all of the light rays that reach it are reflected.
• Almost all of the light rays that reach it pass through it.

Which is translucent?

• tissue paper
• air
• wood
• clear plastic

What is most likely to happen to light that hits an opaque object?

• All of the light passes through the object.
• None of the light passes through the object.
• Most of the light disappears.
• Some of the light passes through the object.

Which is transparent?

• a wooden fence
• clean water
• aluminum foil
• a purple balloon

If you wanted a gift to be a surprise, what kind of container would you put it in?

• transparent
• thick
• opaque
• translucent

Objects appear white because they absorb all colors, and objects appear black because they reflect all colors.

• True
• False