Like this study set? Create a free account to save it.

Sign up for an account

Already have a Quizlet account? .

Create an account


a push or a pull on an object that can cause it to change direction


a force that pulls any two objects toward one another, such as you toward the center of the earth


the tendency of a moving object to stay in motion or a resting object to stay at rest


a force that slows the motion of a moving object


the ability to do work

potential energy

energy than an object has because of position

kinetic energy

energy of motion

mechanical energy

the kind of energy an object has because it can move or because it is moving

chemical energy

energy that comes from chemical changes

electrical energy

energy that comes from the flow of electricity


the result of a force moving an object

simple machine

a machine made of one or two parts

inclined plane

a simple machine with a flat surface and one end higher than the other

wheel and axle

a simple machine made of a wheel attached to a rod


a simple machine that has slanted sides


a simple machine with a fulcrum that changes the direction of the force


a simple machine that uses a rope and a wheel


a simple machine that has an inclined plane wrapped around a rod

compound machine

a machine made of two or more simple machines

complex machine

a machine made of many simple and compound machines

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions and try again


Reload the page to try again!


Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

Voice Recording