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
share
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

Forces

TermDefinition
Force a push or pull
Newton the SI unit of force
Net Forces combined forces
Unbalanced Forces forces that produce a nonzero net force
Balanced Forces equal forces acting on an object in opposite directions
Friction The force that one surface exerts on another when the two surfaces rub against each other
Static Friction Friction that acts on objects that are not moving
Sliding Friction Friction that occurs when one solid surface slides over another
Rolling Friction Friction that occurs when an object rolls over a surface
Fluid Friction Friction that occurs as an object moves through a fluid
Gravity The force that pulls objects toward each other
Mass A measure of how much matter is in an object
Weight A measure of the force of gravity on an object
Free Fall The motion of a falling object when the only force acting on it is gravity
Air Resistance the fluid friction experienced by objects falling through the air
Projectile an object that is thrown
Compression the part of a longitudinal wave where the particles of the medium are close together
Tension stress that stretches rock so that it become thinner in the middle
Created by: Jeremy Lt