Unit 3: Light Waves

Front

What is light?

Back

Light is a form of energy that travels in waves and can be seen by the human eye.

Front

What happens to a rug's color when it is exposed to sunlight for a long time?

Back

The rug can take in energy from the light, causing its color to fade.

Front

What are the three main interactions that light can have when it hits an object?

Back

Light can be reflected, absorbed, and/or transmitted through material.

Front

What happens to the brightness and size of light from a flashlight as it gets closer to an object?

Back

The light gets smaller and brighter.

Front

Which of the following is NOT a light source: Sun, Flashlight, Car headlight, or Plant?

Back

Plant.

Front

What two colors combine to make magenta?

Back

Red and Blue.

Front

What is reflection in terms of light?

Back

Reflection is when light bounces off a surface.

Front

What is absorption in terms of light?

Back

Absorption is when light is taken in by an object and converted to other forms of energy.

Front

What is transmission in terms of light?

Back

Transmission is when light passes through a material without being absorbed.

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.