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PS MFAE Chapter 1

Motion and Momentum

TermDefinition
Vector Quantity A quantity that expresses both magnitude and direction.
Scaler Quantity A quantity that expresses either magnitude or direction.
Speed Scaler quantity which expresses distance per unit time.
Overall Average Speed A ratio of the total distance traveled to the total time elapsed.
Instantaneous Speed The speed at any given moment in time.
Velocity A vector quantity expressing both speed and direction.
Displacement A vector quantity expressing straight-line distance between starting and ending positions and the direction of travel along that path.
Acceleration A vector quantity expressing change in velocity divided by the change in time.
Distance A scaler quantity describing change in position relative to another object.
Elastic Collision A collision in which no energy is lost. Convergent motion tends to end in a bounce.
Inelastic Collision A collision in which kinetic energy is lost. Convergent motion tends to end in a stick.
Superelastic Collision A collision in which kinetic energy is gained. Explosions are an example of this phenomenon.
Motion A change in position.
Created by: MrGross
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