light

The longer the distance between the light source and the object, the ........................... the size of the shadow form on the screen.

• larger

• smaller

• not change

For an object to be visible, it must either __________ or ___________.

• produce its own light

• reflect light

• absorb light

Choose the three primary colors of light.

• Pink

• Red

• Blue

• Green

Choose the three secondary colors of light.

• Yellow

• Green

• Cyan

• Magenta

A cut piece of clear glass or plastic in the form of a triangle or other geometric shape.

• Person

• Pyramid

• Prism

• Prison

A student placed a pencil in a cup of water.  The pencil appears broken because light-

• always travels in a straight line
• bends when it passes through water
• makes the water in the glass evaporate
• reflects the pencil on the water's surface

What is it called when light bends as it moves from one substance to another?

• Refraction

• Absorption

• Reflection

• Incidence

What makes it possible to see an object when looking through a periscope?

• It contains mirrors that reflect the object.

• It magnifies small objects so they can be seen.

• It absorbs the light rays passing through it.

• It separates the light into different colors.

What makes it possible to see an object when looking through a periscope?

• It contains mirrors that reflect the object.

• It magnifies small objects so they can be seen.

• It bends the light rays passing through it.

• It separates the light into different colors.

Which will make the darkest shadow?

• Sheet of thin tissue paper.

• glass window

• wooden chopping board

• plastic bottle