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.

Cosmology

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
        Help!  

Question
Answer
What is cosmology?   A science that explains about the universe's birth and development.  
🗑
True or false - Is the universe expanding overtime?   True  
🗑
Does the universe has an edge or a center?   No; according to the cosmological principle, the universe has no center nor edge.  
🗑
The farther the galaxy, ........   The farther we look back in time (distant galaxies are much younger than nearby galaxies)  
🗑
How can we find the age of the universe with distant galaxies?   Lookback time - The amount of time since the light we see from distant objects.  
🗑
True or false - The universe expanding into something.   False  
🗑
In the beginning of the universe, helium and hydrogen filled the space almost __________   Uniformly  
🗑
The densest area, with much matter, becomes the   "seeds" of galaxies  
🗑
in the first step of galaxy's formation, the cloud expands along with the universe, however it stopped by __________.   Gravity  
🗑
Gravity contracts clouds into ___________, which helps form galaxies.   Protogalactic clouds  
🗑
Where do protogalactic clouds form?   Densest regions of the universe  
🗑


   

Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
 
To hide a column, click on the column name.
 
To hide the entire table, click on the "Hide All" button.
 
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
 
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.

 
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
Created by: U0105006
Popular Science sets