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.

Pershing Astr.1

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 does a telescope collect from space?   electromagnetic radiation  
🗑
What does the Earth's atmosphere do to gamma rays and x-rays?   block them  
🗑
What is the imaginary sphere that surrounds the Earth?   celestial sphere  
🗑
Name 3 types of electromagnetic radiation found on the spectrum?   microwave visible light radio wave  
🗑
How did Hubble tell the universe was expanding?   most of the galaxies were moving away from each other  
🗑
Why do the scientists put the X-ray telescopes in space?   to avoid interference from the Earth's atmosphere  
🗑
What theory do the observations of red-shift support?   that the universe is expanding  
🗑
What do all the wavelengths of the electromagnetic radiation make up?   the whole electromagnetic spectrum  
🗑
Who showed that planets move in elliptical orbits around the sun?   Kepler  
🗑
Who showed that gravity keeps planets and moons in orbit?   Newton  
🗑
Who was one of the first astronomers to use a telescope to observe objects in space?   Galileo  
🗑
Who proved that there were many galaxies?   Hubble  
🗑
Who created an Earth-centered theory of the universe?   Ptolemy  
🗑
Who created a sun-centered theory of the universe?   Copernicus  
🗑
What is a year?   the time it takes for Earth to orbit once around the Sun  
🗑
What is a day?   the time it take Earth to rotate once on its axis  
🗑
What is altitude?   the angle between the object in the sky and the horizon  
🗑
What is a constellation?   a region in the sky with a recognizable star pattern  
🗑
What is a month?   the time it takes for the moon to orbit once around the Earth  
🗑
What is the horizon?   the line where the sky and Earth appear to meet  
🗑
What is a refracting telescope?   an instrument that uses lenses to focus light  
🗑


   

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: ellist
Popular Science sets