Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

Username is available taken
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.
Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Didn't know it?
click below
Knew it?
click below
Don't Know
Remaining cards (0)
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

Chapter 27 Vocab

Brinson Chapter 27 Vocab

Photon In the particle model of electromagnetic radiation, a particle that travels only at the speed of light and whose energy is related to the frequency of the radiation in the wave model.
Light Year The distance light travels through a vacuum in one year.
Electromagnetic Wave A wave that is partly electric and partly magnetic and carries energy. Emitted by vibrating electric charges.
Electromagnetic Spectrum The range of electromagnetic waves extending from radio waves to gamma rays.
Infrared Electromagnetic waves of frequencies lower than the red of visible light.
Ultraviolet Electromagnetic waves of frequencies higher than those of violet light.
Transparent Term applied to materials that allow light to pass through them in straight lines
Opaque Term applied to materials that absorb light without remission, and consequently do not allow light through them.
Ray A thin beam of light.
Shadow A shaded region that results when light falls on an object and thus cannot reach into the region on the far side of the object.
Umbra The darker part of a shadow where all the light is blocked.
Penumbra A partial shadow that appears where light from part of the source is blocked and light from another part of the source is not blocked.
Polarization The aligning of vibrations in a transverse wave, usually by filtering out waves of other directions.
Created by: baderc
Popular Physics sets




Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
restart all cards