Lessons 5-7 Quiz Review

When the sun is behind you, your shadow is...

• behind you

• in front of you

• to the side of you

When an object moves farther away from a light source, its shadow...

• gets bigger

• gets smaller

• changes shape

• stays the same

When is a shadow formed?

• when light from a source is reflected off of a smooth surface

• when light from a source is transmitted through a transparent object

• when light from a source is blocked by an opaque object

What happens to a shadow when two light sources are shining on an object?

• there is (2) shadow that gets bigger and darker

• there is (1) shadow that gets darker and smaller

• there are (2) shadows that get lighter and more blurry

• there is no shadow formed

When light bounces evenly off of a very smooth surface, it is called _________.

• absorption

• scattering

• reflection

• transmission

Why can you see yourself in a mirror, but not in a piece of wood?

• Mirrors scatter light, while wood reflects light.

• Mirrors bounce light rays in many directions.

• There is a flashlight behind the mirror.

• Mirrors bounce light rays in the same direction.

Many surfaces that feel smooth to the touch but still scatter light. Why?

• They reflect light.

• They scatter light.

• They need to be polished.

• They have microscopic bumps.

What kind of path does light take?

• It curves around an object.

• It always goes through an object.

• It always reflects off of an object.

• It travels in a straight line until it hits something or goes through it.

Why can't you see light from planets and stars during the day?

• The sun's light is so bright that your eyes cannot detect the weaker light from the planets and stars.

• Planets and stars are too far away to see any light given off by them.

• Planets and stars do not give off any light.

Approximately, how long does it take for Earth to orbit the sun?

• 12 hours

• 24 hours

• 30 or 31 days

• 365 days