Busy. Please wait.

Forgot Password?

Don't have an account?  Sign up 

show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.

Already a StudyStack user? Log In

Reset Password
Enter the email address associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know (0)
Know (0)
remaining cards (0)
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Light vocab

absorb to take in.
energy the ability to cause matter to change or move.
lens a piece of curved glass, plastic, or other material that refracts light.
light a form of energy that you can see.
opaque a material that blocks light from passing through it.
prism a piece of glass or other transparent material that separates light into colors.
reflect when light waves bounce off surfaces.
refract when light "bends". when light moves from one transparent material to another, such as to air to glass or to water.
shadow an area where light does not strike.
translucent a material that allows some light to pass through it, but scatters the light in many directions - frosted glass.
transparent material that allows light to pass through it - clear plastic or glass.
Created by: 1028261288