Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

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.
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
remaining cards
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:
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

AP Physics 1

Vocabulary Chapter 7

Conservation of Momentum When no net external forces acts on a system, the total momentum of the system remain unchanged. When two internal bodies interact and no external forces are acting on the objects, their total momentum remains unchanged.
Elastic Collisions Very brief actions of two or more particles where they come in close position with one another, resulting in a change in momentum or exchange of energy. These "collisions" obey the law of conservation.
Impulse The change in the momentum of an object that occurs when an unbalanced force acts upon the object for a period of time. >N*s is the SI unit of impulse
Inelastic Collision The usual case for collisions, in which kinetic energy is not conserved, but momentum is conserved.
Momentum A vector quantity that has the same direction as an objects velocity, its magnitude is equal to the product of the objects mass and speed; p=mv.
Created by: BMcCormack