Light Vocabulary

Front

What is light?

Back

Light is a form of energy that our eyes see.

Front

What happens to light when it is refracted?

Back

Light bends when it is refracted.

Tags

NGSS.MS-PS4-2

Front

What is a lens?

Back

A lens is a piece of curved glass, plastic, or other material that refracts light.

Front

What is a shadow?

Back

A shadow is an area where light does not strike.

Front

What does the law of reflection state?

Back

The angle of incidence is equal to the angle of reflection.

Tags

NGSS.MS-PS4-2

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 reflection and refraction?

Back

Reflection is the bouncing back of light when it hits a surface, while refraction is the bending of light as it passes from one medium to another.

Tags

NGSS.MS-PS4-2

Front

What is total internal reflection?

Back

Total internal reflection occurs when light hits a boundary at an angle greater than the critical angle, causing it to be completely reflected back into the medium.

Tags

NGSS.MS-PS4-2

Front

What is the critical angle?

Back

The critical angle is the angle of incidence above which total internal reflection occurs.

Tags

NGSS.MS-PS4-2

Front

What are the primary colors of light?

Back

The primary colors of light are red, green, and blue.