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chapter 9 vocab
Term | Definition |
---|---|
motion | distance from another object is changing |
refrence point | place or object used for comparision to see if some thing is in motion |
distance | length between two points |
displacement | length and direction that an object has moved from it starting point |
vector | magnitude and direction of a motion |
speed | distance traveled per unit of time (also called rate) |
average speed | total distance / total time |
instataneous speed | rate (speed) at a given time |
velocity | speed in a specific vector |
slope | steepness of a line graph |
work | when force is exerted on an object that causes it to move |
energy | ability to do work or cause change |
kinetic energy | energy that an object has due to its motion |
potential energy | stored energy that results from the position of shape of an object |
gravitational potential energy | potential energy related to an object's hieght |
elastic potential energy | the potential energy of objects that can be pulled or pressed |
law of conservation | states that when one form of energy is transferred to another neither is destroyed or created |
acceleration | the rate at which velocity changes |