Advertisement Upgrade to remove ads



Push or Pull


Speed with direction v=d/t


How fast or slow s=d/t


Change in speed/velocity over time a=v/t a=f/m

When you slow down it is called...



When something tends to rub or does rub against something else

What direction does friction always go in?

The opposite way of motion

What is inertia and is it a force?

An object's resistance to changing its state of motion. Inertia is not a force.

Directly Proportional

When two quantities both change by the same factor

Indirectly proportional

When two quantities don't change by the same factor

Newton's Second Law

The acceleration produced by a net force on an object is erectly proportional to the net force, is in the same direction as the net force, and is inversely proportional to the to the mass of the object

Newton's Third Law

Whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first

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 above 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

NEW! Voice Recording