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chapter 2 vocab
Term | Definition |
---|---|
Distance | how far an object moves. |
displacement | distance and direction of an object's change in position from the starting point. |
speed | distance an object travles per unut if time. |
average speed | total distance an object tavles divided by the total time it takes to travel that distance. |
instantaneous speed | speed ofan object at a given point in time; is constant for an object moving with constant speed, and changes with time for an object that that is slowing down or speeding up |
velocity | the speed and directio of a moving object. |
acceleration | rae of change of velocity; can be calculated by by dividing the change in the velocity by the time it takes the change to occur. |
force | a push or pull exerted on an object. |
net force | sum of the forces that are acting on an object. |
balanced force | forces on a object that combine to give a zero net force and do not change the motion of the object. |
inertia | resistance of an object to a change in its motion. |