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

Chapter 11 Vocab.

Forces and Newton's Laws

velocity the speed and direction of a moving
force a push or pull
net force the combination of all the forces acting on an object
balanced forces two or more forces whose effects cancel each other out and do not change the motion of an object
unbalanced forces two or more forces acting on an object that do not cancel, and cause the object to accelerate
Newton's First Law of Motion if the net force acting on an object is zero, the object remains at rest, or if the object is already moving, continues to move in a straight line with constant speed
friction the force that brings nearly everything to a stop
acceleration the change in velocity divided by the time over which the change occured
Newton's Second Law of Motion the acceleration of an object equals the net force divided by the mass and is in the direction of the net force
weight the size of the gravitational force exerted on a object
center of mass the point an object that moves as if all the object's mass were concentrated at that point
Newton's Third Law of Motion forces always act in equal but opposite pairs
Created by: desgold399