Unit 07: Light Practice

Front

What is sunlight?

Back

Sunlight is white light.

Front

What determines the color of visible light?

Back

The wavelength determines the color of visible light.

Front

What is an object that allows light to pass through completely?

Back

A transparent object.

Front

What is the lowest point on a light wave called?

Back

The lowest point on a light wave is called the trough.

Front

How does light energy move?

Back

Light energy moves in transverse waves.

Front

What is the highest point on a light wave called?

Back

The highest point on a light wave is called the crest.

Front

What is the distance between two consecutive crests or troughs in a wave?

Back

The distance is called the wavelength.

Front

What type of object scatters light but does not allow it to pass through completely?

Back

A translucent object.

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.

Front

What happens to light when it hits a mirror?

Back

Light reflects off a mirror.