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Chapter 5
motion, force, friction, gravity
Term | Definition |
---|---|
motion | |
speed | distance divided by time |
average speed | total distance divided by time |
instantaneous speed | the speed you are going right at that moment |
velocity | speed and direction |
acceleration | speeding up, slowing down, changing direction |
force | push or pull on an object |
Newton | SI unit for force |
net force | |
friction | |
kinetic friction | |
static friction | |
gravity | |
weight | |
mass |