Light and Color

Front

What is light?

Back

Light is a form of energy.

Front

Why does a pencil appear broken when placed in a glass of water?

Back

The pencil appears broken because light rays are bent when they pass from air into water.

Front

What happens to colors when you see the color black?

Back

When you see the color black, all colors are absorbed.

Front

What is the correct order of the colors of the rainbow?

Back

Red, Orange, Yellow, Green, Blue, Indigo, Violet.

Front

What happens to light when it strikes an opaque surface?

Back

The light does not pass through the opaque surface.

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another.

Front

What is the speed of light in a vacuum?

Back

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

Front

What is the difference between transparent, translucent, and opaque materials?

Back

Transparent materials allow light to pass through clearly, translucent materials allow some light to pass through but not clearly, and opaque materials do not allow light to pass through.

Front

What is the visible spectrum?

Back

The visible spectrum is the portion of the electromagnetic spectrum that can be seen by the human eye, typically ranging from about 380 nm to 750 nm in wavelength.

Front

What is the role of prisms in relation to light?

Back

Prisms can refract light and separate it into its component colors, creating a spectrum.