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

Unit 2 Energy

Science

TermDefinition
work the transfer of energy to an object by using a force that causes the object to move in the direction of the force
energy the strength and vitality required for sustained physical or mental activity
power the ability to do something or act in a particular way
kinetic energy energy that a body possesses by virtue of being in motion
potential energy the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors
mechanical energy sum of kinetic and potential energy in an object that is used to do work
machine a device that helps do work by changing the magnitude and/or direction of an applied force
mechanical efficiency a quantity, usually expressed as a percentage, that measures the ratio of work output
lever a rigid bar resting on a pivot, used to help move a heavy or firmly fixed load with one end when pressure is applied to the other
mechanical advantage a number that tells how many times a machine multiplies input force
fulcrum the point on which a lever rests or is supported and on which it pivots
wheel and axle a simple lifting machine consisting of a rope that unwinds from a wheel onto a cylindrical drum or shaft joined to the wheel to provide mechanical advantage
pulley a simple that consists of a wheel over which a rope, chain, or wire passes
inclined plane a simple machine that is a straight, slanted surface, which facilitates the raising of loads; a ramp
Created by: carington33