Physics 2220 Placement Exam
Definitions And Formulas
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scalars ANS✔✔ quantities described by magnitude (or solely a number)
vectors ANS✔✔ quantities with both a magnitude and a direction
distance ANS✔✔ a scalar quantity describing "how much ground an object
has covered" in its movement
Displacement ANS✔✔ a vector quantity that describes "how far out of place
an object is" / the objects overall change in position
Speed ANS✔✔ a scalar quantity that refers to "how fast an object is moving."
ex. running a 500 m circle in 1 hour is 500m/hr (if their speed was constant)
Velocity ANS✔✔ a vector quantity that refers to "the rate at which an object
changes its position." ex. running in a circle results in a zero velocity. (when
being stated a direction must be included ex. 50mph east)
Average Speed ANS✔✔ The overall rate of speed at which an object moves;
calculated by dividing the total distance an object travels by the total time.
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