SI unit of force
a push or pull; needed to change an object's state of motion
the combination or sum of forces that act on an object
force that stretches something like a rope or string
an arrow that represents magnitude and direction
quantity described by magnitude but not direction (time, area, volume)
state where an object is at rest
state where an object is moving in a straight line at a constant speed
state where the net force is zero
Please allow access to your computer’s microphone to use Voice Recording.
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.
Your microphone is muted
For help fixing this issue, see this FAQ.
NEW! Voice Recording
Click the mic to start.