Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


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.
We do not share your email address with others. It is only used to allow you to reset your password. For details read 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.
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards
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

Physical Science

Apologia Physical Science Module 16 Terms

TermDefinition
Nuclear Fusion the process by which two or more small nuclei fuse to make a bigger nucleus
Nuclear Fission the process by which a large nucleus is split into smaller nuclei
Critical Mass the amount of isotope necessary to sustain a chain reaction
Absolute Magnitude the brightness of a star, corrected for distance, on a scale of -8 to +19. The smaller the number the brighter the star
Apparent Magnitude the brightness of a star as seen in the night sky. the smaller the number, the brighter the star
Light Year the distance light can travel in a strait line in one year
Galaxy a large ensemble of stars, all interacting through the gravitational force and orbiting around a common center
Created by: sheflips