Light Energy Clickers

Why is it better to wear a white shirt than a black shirt in the summer?

• White shirts reflect all the colors of visible light.
• Black shirts absorb all colors of visible light.
• Black material weighs more.
• White material weighs less.

Light bends as it travels from air to water.  What is the bending of light called?

• reflection
• refraction
• absorption
• transmission

How is a rainbow formed?

• When it rains, the air reflects all the colors of the rainbow.
• Since light must have a medium through which to pass, we can only see the colors when it’s raining.
• Some light is absorbed by the air and some is reflected in the rain drops, which is why we see many separate colors.
• Light rays bend as they pass from air through drops of water.

All of the colors of white light are separated and visible when white light is

• reflected
• refracted
• absorbed
• transmitted

What happens when light reflects off an object?

• People can see it.
• It is absorbed.
• People see a mirror image.
• It bounces off and disappears.

Which best explains why objects can be seen?

• Light shines on objects.
• Objects are made of matter.
• Light refracts off objects.
• Objects reflect light.

Glass, water, and clear plastic allow light to pass through them. Which word best describes these objects?

• translucent
• refractive
• transparent
• opaque

Which best explains why people see grass as green?

• The pigment in the grass reflects only green light.
• The grass absorbs green light from the sun.
• Green light changes direction when it hits the grass.
• The grass is opaque and does not allow green light through.

An object that appears red

• reflects all the colors of visible light except red light.
• reflects red light and absorbs all the other colors of visible light.
• absorbs red light.
• reflects all the colors of visible light.

How does light travel?

• in a broken line
• in a straight line
• in a zigzag line
• in a curved line