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 26 Cosmology Pt 1

Vocabulary

TermDefinition
Cosmology study of the structure and evolution of the entire universe (cosmos)
Sloan Great Wall cosmic structure formed by a giant "filament" of galaxies
Pencil-Beam Survey narrow field survey of galaxy distribution
Galactic Pole passes through the observer and is perpendicular to the galactic equator
Homogeneity assumes that the number of galaxies in the universe is generally the same everywhere
Isotropy says that the universe looks the same in every direction
Cosmological Principal assumes the universe is homogenous and isotropic on sufficiently large scales
Cosmic Web A network of filaments of dark matter, believed by many astronomers to form the basis of the universe
Hubble Ultra Deep Field image of a small region of space, containing an estimated 10,000 galaxies
Olbers' Paradox suggests that if the universe were homogeneous, infinite, and unchanging, the sky would be as bright as the Sun all the time
Hubble Expansion Hubble's Law is the same, regardless of where the measurements are taken from
Primordial Fireball when the early universe was hot & dense and was dominated by the effects of radiation
Big Bang event considered the beginning of the universe, when all matter & radiation came into being
Doppler Redshift redshift that is due to the relative motion of objects
Cosmological Redshift redshift of an object that is due only to the Hubble flow of the universe
General Relativity proposed by Einstein to incorporate gravity into the theory of special relativity
Newtonian Mechanics basic laws of motion, which sufficiently explain much of the universe's behavior
Created by: john_bailey720
Popular 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