Light Basics

1.  Light and Sound are forms of ______________________.    

• energy  
• sound
• humus
• wind

Light can be transmitted, reflected, absorbed, and refracted (bent)

• True
• False

7.  ____________________ occurs when an object takes in a light wave, and the light wave turns into a form of heat energy. 

• Transparent
• Absorption  
• Opaque
• Translucent

Materials that let some light rays pass through (ex. stained glass window)

• translucent
• transparent
• opaque
• wood

When light can easily pass all the way through an object (ex: clear plastic wrap), we say that that object is ___ .

• transparent

• translucent

• opaque

• transported

When no light can pass through an object (ex: human), we say that that object is ____ .

• opaque

• transparent

• translucent

• translated

Which of the following is the best model for how light is reflected off of a smooth surface?

• A truck traveling down a street.

• A baseball being hit by a bat.

• A ball bouncing off a wall.

• An acorn falling from a tree.

A student place a ruler into a glass of water and observes that the ruler looks broken. What is occuring?

• The force of the water has broken the ruler.
• The ruler is broken before it is put in the water.
• Water in the cup reflects light around the ruler in a different direction than the air.
• Light is refracted as it enter the water, making the ruler look broken.

What color absorbs all light?

• white

• black

• red

• yellow

Objects look different under water because

• the light rays bounce off
• the light rays bend
• the light rays stop
• the light rays travel straight