Light and Sound Review

What color is sunlight?

•  yellow
• orange
• white 
• red

The only type of energy waves you can see are 

• xrays
• light waves
• microwaves
• radio waves

Laser beams are more powerful than regular light because 

• they can travel long distances without getting dim.
• all light waves are red.
• they do not travel in straight lines.  
• they have bright colors.

A red flower is red because it

•  can not produce any other color but red
• reflects every color of light except red
• absorbs every color of light except red
• refracts ever color in the rainbow

The lenses inside your eyes are 

• retracting
• concave
• convex
• the pupils

A rainbow occurs when 

• The sun produces colored light instead of white light
• The sun shines through water droplets, breaking the white light into the colors of the spectrum. 
• Clouds reflect all of the colors in the visible spectrum
• The sun isn't shining

Which material is translucent?

• a piece of wood. 
•  a window
• tissue paper
• my cat

In what way are all sounds alike?

• All travel through empty space
• They are visible (can be seen)
• All are caused by vibrations
• Sound can be seen.

 Why are some sounds louder than others

• They are noise, not music.
• They are made with more energy.
• They are moving slower.
• They result from slower vibrations.

In which of these materials would sound travel fastest?

• air 
• wood 
• water
• gases