Light waves are _____ waves.

Light waves are like vibrations (or ripples) in both the electric and magnetic _____.

Light waves require a medium made of matter to travel.

At times, light acts less like a wave, and more like it is made of tiny particles called _____.

_____ is the only type of EM wave that can be seen by humans.

Visible light is actually _____ different wavelengths mixed together.

The different "colors" of visible light actually have different _____.

A prism separates visible light into its different wavelengths (colors) by _____.

An object that produces its own light is _____.

Which of the following is NOT an example of a luminous object?

An object that only able to reflect light from another object is _____.

Earth's moon is _____.

Which type of wave-matter interaction is when waves pass straight through a medium?

Substances that allow a lot of light to pass them mostly unchanged are called _____.

Transparent substances are good at _____ light.

Substances that allow *some* light waves to pass through them, but blur the image are called _____.

Translucent substances are good at transmitting and _____ light.

Frosted glass and wax paper are good examples of _____ materials.

Substances that do not allow any light to pass through them are called _____.

Opaque substances are good at reflecting and _____ light.

Which type of reflection is shown in the picture?

Which type of reflection is shown in the picture?

_____ reflection occurs from a smooth or polished surface.

_____ reflection occurs from a rough or bumpy surface.

_____ are chemicals that absorb different wavelengths (colors) of light and give objects their colors.

_____ is a pigment found in skin that creates different skin colors by absorption.

_____ is a pigment found in the leaves of plants that helps give them their green color.

Pigments mostly work by _____ different wavelengths (colors) of light.

When a pigment absorbs all of the wavelengths (colors) of visible light, what color do humans see?

Black objects _____, because they mostly absorb most wavelengths of light.

All of the wavelengths (colors) of visible light mixed together are called _____ light.

Red, green, and blue are the _____ colors of light.

When all wavelengths (colors) of visible light are reflected off an object, what color do humans see?

White objects _____, because they mostly reflect most wavelengths of light.

What wavelength (color) of visible light is mostly reflected from the leaf?

Which wavelength of visible light is mostly reflected from the banana?

Which wavelength of visible light is mostly reflected from the apple peel?

(Choose all correct answers.) Which colors of visible light are mostly absorbed by the apple peel?

(Choose all correct answers.) Which wavelengths (colors) of visible light are absorbed by the pigments in the black cat's fur?

(Choose all correct answers.) Which wavelengths (colors) of visible light are reflected by the polar bear's fur?

The beam of light from a flashlight gets dimmer as it travels further from the source because some of its energy is _____ and turned into heat energy.

The beam of light from a flashlight spreads out the further it travels from the source because the light is _____ by the air tiny particles of air.