Sources of Light

Light from a firefly is an example of artificial light.

• True
• False

These waves travel in a __________ line.

• jagged
• squiggly
• straight
• obstructive 

Which type of electromagnetic waves are used to image bone? 

• Gamma Rays
• UV Rays
• X-Rays
• B-Rays

Which of these is an example of visible light?

• X-rays
• a rainbow
• microwaves
• radio waves

What is the general term for  objects that emit energy in the form of light?

• luminous
• incandescence
• fluorescence
• phosphorescence

You have cool glow-in-the-dark stickers of Mickey Mouse. This is an example of 

• fluorescence
• chemiluminescence
• phosphorescence 
• incandescence

The higher the frequency the ______ the energy. 

• higher
• lower
• same amount of

_______ carry the greatest amount of energy. 

• x-rays
• gamma rays
• infrared rays
• radio Waves

You can see through water because ---

• it's opaque.
• it's translucent.
• it's transparent.
• it's wet.

Tissue paper is __________.

• opaque
• transparent
• translucent