## Ch. 1 Motion and Momentum Section 1

##### Created by:

emilycla  on April 17, 2012

What is Motion?

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# Ch. 1 Motion and Momentum Section 1

 Speedthe distance traveled divided by the time taken to travel the distance; distance/time
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#### Definitions

Speed the distance traveled divided by the time taken to travel the distance; distance/time
Average Speed dividing the total distance traveled by the time taken
Instantaneous Speed the speed of an object at the one instant of time
Velocity the speed of the object and the direction of its motion
Acceleration the change in velocity divided by the time it takes for the change to occur
mass the amount of matter in the object
inertia tendency of an object to resist a change in its motion
momentum a measure of how hard it is to stop the object; symbolized by p
law of conservation of momentum the total momentum of objects that the collide is the same before and after the collision.

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