11 terms

Force and Motion

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force
a push or a pull
balanced force
forces that cancel each other out when acting together on a single object
unbalanced force
forces that do not cancel each other out when acting together on a single object
position
location of an object
speed
changes in velocity with respect to time
velocity
the speed and direction of a moving object
acceleraction
how fast an object's position is changing with time at any moment
momentum
Combination of mass and speed
friction
a force that opposes the motion of one object moving past another
gravity
a force of attraction between two objects due to their mass and distance
inertia
the tendency for an object to resist a change in its state in motion (an object at rest will stay at rest)