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Physical Science
Physical Science Test 5
Term | Definition |
---|---|
Frame of Reference | a system of objects that are not moving with respect to one another |
Relative Motion | the movement in relation to the frame of reference |
Distance | the length of a path between two points |
Displacement | the direction form the starting point and the length of a straight line from the starting point to the ending point |
Vectors | quantities that have magnitude and direction |
Speed | the ratio of the distance an object moves to the amount of time the object moves |
Average Speed | computed for the entire duration of a trip |
Instantaneous Speed | rate at which an object is moving at a given moment in time |
Velocity | speed and direction in which an object is moving |
Acceleration | rate at which velocity changes |
Constant acceleration | steady change in velocity |
average speed formula | v = d/t |
acceleration formula | a= (Vf - Vi) t |