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College Physics Ch 1
Vocabulary from Ch 1 of College Physics by Knight
Question | Answer |
---|---|
motion | the change of an object's position or orientation with time |
trajectory | the path along which an object moves (may be straight or curved) |
motion diagram | composite image, showing an object's positions at several equally spaced instants of time |
operational definition | definition in which a concept is defined in terms of a particular procedure or operation performed by the investigator |
particle | a mass at a single point in space (often used to represent an object) |
model | a simplification of reality (i.e. treating an object as a particle) |
particle model of motion | a simplification in which a moving object is treated as if all of its mass were concentrated at a single point |