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chapter 11 vocab
Term | Definition |
---|---|
frame of reference | a system of objects that are not moving with respect to another |
relative motion | movement in relation to a frame of reference |
distance | the length of a path between two points |
vector | a quantity that has a direction associated with it |
resultant vector | the vector sum of two or more vectors |
speed | the of the distance an object moves to the amount of time the object moves |
average speed | the total distance traveled divided by the time it takes to travel the speed |
instantaneous speed | the rate at which an object is moving at a given movement in time |
velocity | the speed and direction an object is moving measured relative to a reference point |
Acceleration | the rate at which velocity changes |
free fall | the movement of an object toward earth because of gravity |
constant acceleration | a steady change in velocity |
linear graph | a graph in which the displayed data from a straight line |
nonlinear graph | a graph in which the displayed data from a curved line |