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EVAN VOYK
Chapter 11 Vocabulary
Term | Definition |
---|---|
frame of reference | the necessary ingredient of a description of a form of motion. |
relative motion | movement in relation to a frame of reference. |
distance | length of a path between two points. |
vector | quantity that has magnitude and direction. |
resultant vector | the vector sum of two or more vectors. |
speed | the ratio of distance an object moves to the amount of time the object moves. |
average speed | how fast something moved the entire trip. |
instantaneous speed | the rate that an object is moving at a given moment of time. |
velocity | the speed and time that an object is moving in. |
acceleration | the rate at which a velocity changes. |
free fall | acceleration due to a change in speed. |
constant acceleration | a steady change in velocity. |
linear graph | the displayed data forms straight line parts. |
nonlinear graphs | accelerated motion represented by a curved line on a distance-time graph. |