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.

Remove Ads
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


Simple Machines

Work When a force changes he motion of an object
Energy The ability to do work
Pulley It uses a wheel and a rope to lift a load
Ramp A flat surface that is higher at one end
Machine A tool that makes work easier to do
Simple Machine A machine with few or no moving parts
Lever A straight bar that moves on a fixed point
Wheel and Axle Changes the strength of a turning force
Incline Plane A simple machine that makes work easier
Wedge Uses force to raise an object or split objects apart
Screw An inclined plane wrapped into a spiral
Compound Machine When you put two or more simple machines together
Created by: erin.warren