Save
Upgrade to remove ads
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

Astronomy - FOS

Foundations of Science

TermDefinition
Universe everything physical that exists in space and time; sum of all space, matter, and energy that exists now, in the past, and that will exist in the future
Doppler Effect a shift in frequency due to relative motion
Red Shift light waves emitted from an object that is moving away and are stretched out
Blue Shift light waves emitted from an object that is moving towards you and are clumped together
Big Bang Theory theory that all matter and energy in the universe was compressed into an extremely small space that 13 - 15 billion years ago exploded and began expanding in all directions
Light-year a unit of distance which is approximately 9.5 x 10^12 km
Astronomy study of the universe
Galaxy collection of stars, dust, and gas bound together by gravity
Cluster group of stars or galaxies bound by gravity
Local group group of galaxies; contains the Milky Way along with at least 44 other galaxies
Interstellar matter the gas and dust located between the stars in a galaxy
Quasar very luminous object that produces energy at a high rate; are thought to be the most distant objects in the universe
Milky Way spiral galaxy consisting of over 400 billion stars, plus gas and dust arranged into a halo, nuclear bulge, galactic center, and a disk
Created by: smaske
Popular Earth 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