Visible Light

Front

What is visible light?

Back

Visible light is the part of the electromagnetic spectrum that can be seen by the human eye. It consists of different colors that can be seen when light is refracted, such as in a rainbow.

Front

What colors make up the visible spectrum?

Back

The visible spectrum includes the colors Red, Orange, Yellow, Green, Blue, Indigo, and Violet, often remembered by the acronym ROYGBIV.

Front

How do we see the color white?

Back

We see the color white when all colors of light are reflected and none are absorbed.

Front

What is the saying to remember the order of the visible spectrum?

Back

ROYGBV is the saying that helps remember the order of the visible spectrum: Red, Orange, Yellow, Green, Blue, Violet.

Front

What type of wave is a light wave?

Back

A light wave is a transverse wave, which means it oscillates perpendicular to the direction of the wave's travel.

Front

What are some uses of visible light?

Back

Visible light is used in light bulbs, televisions, and lasers.

Front

Which color in the visible spectrum has the longest wavelength?

Back

Red has the longest wavelength in the visible spectrum.

Front

What happens when light hits a surface?

Back

When light hits a surface, it can be reflected, absorbed, or transmitted, depending on the properties of the surface.

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another, such as from air to water.

Front

What is the speed of light?

Back

The speed of light in a vacuum is approximately 299,792 kilometers per second (or about 186,282 miles per second).