Light

Light is a form of _____ that is needed to support life on Earth.

• A. compression

• B. motion

• C. energy

• D. vibration

Answer explanation

Light is an energy from the sun warms the Earth.

The sun is the main source of light.

What happens when you focus a penlight through a hole in a thick cloth? The light _____.

• A. becomes brighter

• B. changes direction

• C. passes through the hole

• D. is blocked or obstructed

Answer explanation

When you focus a penlight through a hole of a thick cloth, the light will come through in straight line.

Light travels out from its source in straight lines called _____.

Answer explanation

Light travels out from its source in straight lines called rays. Light do not curve but only travel in straight line.

Light travels continuously until it hits an object. How does a light travel?

Light travels continuously until it hits an object. How does a light travel?

What is the process that describes when light bounces off an object?

• A. refraction

• B. reflection

• C. rotation

• D. diffraction

Which of the following is the best example of a transparent material?

• A. metal

• B. water

• C. waxed paper

• D. wood

When light rays refract or bend as they move from one medium

(solid, liquid, or gas) to another is called ____.

You can see yourself in a mirror because of ________.

You can see yourself in a mirror because of ________.