Visible Light

Choose the three primary colors of light.

• Pink

• Red

• Blue

• Green

Choose the three secondary colors of light.

• Yellow

• Green

• Cyan

• Magenta

Which color has the longest wavelength and shortest frequency?

• Red

• Yellow

• Blue

• Violet

Which color has the shortest wavelength and highest frequency?

• Violet

• Yellow

• Orange

• Green

What color of light has the longest wavelength?

• red

• green

• yellow

• violet

What color of light has the shortest wavelength?

• red

• indigo

• yellow

• violet

Why does this apple look red?

• The apple reflects red light and absorbs all other colors

• The apple absorbs red light and reflects all other colors

• The apple reflects all the light shinning on it

• The apple is red because we see that color.

A student places a pencil in a glass of water and observes that the pencil appears to be broken. Which of these provides the best explanation for why the pencil appears broken?

• The pencil absorbs all the light rays that hit it.

• Water reflects light rays away from the pencil.

• Light rays are bent by the water in the glass

• The surface of the water reflects light rays.

Complete the following analogy. RADIO WAVES : LONGEST WAVELENGTH :: ____________ : SHORTEST WAVELENGTH

• INFRARED LIGHT

• ULTRAVIOLET LIGHT

• X-RAYS

• GAMMA RAYS

True or False: Humans can see all segments of the electromagnetic spectrum.

• True

• False