Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
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.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
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

Ch 10 '14

Astronomy

TermDefinition
astronomers People who study outer space and celestial bodies.
Big Bang theory A theory to explain how the universe happened.
celestial bodies Everything that is matter in the universe.
cosmological red shift Spectral lines are all shifted to longer (redder) wavelengths.
electromagnetic radiation Energy that comes out in the form of waves. Electromagnetic, meaning from the electromagnetic spectrum.
elliptical galaxy A type of galaxy having an approximately ellipsoidal shape and a smooth, nearly featureless brightness profile.
irregular galaxy A galaxy that does not have a distinct regular shape, unlike a spiral or an elliptical galaxy. .
nebula The place where stars are made from dust and hydrogen.
red shift The displacement of spectral lines toward longer wavelengths (the red end of the spectrum) in radiation from distant galaxies and celestial objects.
spectroscope An apparatus for producing and recording spectra for examination.
spiral galaxy A galaxy in which the stars and gas clouds are concentrated mainly in one or more spiral arms.
star cluster A group (hence cluster) of stars.
Created by: mddai
Popular Physical Science sets

 

 



Voices

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:
Retries:
restart all cards