# Shared Flashcard Set

## Details

Physics 1050 - Section 1.3: Position, Time, and Displacement
Chapter 1 - Concepts of Motion
9
Physics
09/17/2017

Term
 To use a motion diagram, what do you need to know?
Definition
 Where the object is and when the object was at that position.
Term
 What do negative numbers indicate?
Definition
 They locate an event in space or time relative to an origin.
Term
 What is a position vector?
Definition
 An arrow from the origin to the point representing the object being studied.
Term
 What is a scalar?
Definition
 A single number (with a unit) that describes a physical quantity.
Term
 What can a scalar be (in terms of signs)?
Definition
 Positive, negative or zero.
Term
 What is a vector?
Definition
 A quantity having both a size and a direction.
Term
 What is the magnitude of a vector?
Definition
 The size or length of a vector.
Term
 What does the Greek symbol Delta indicate?
Definition
 The change in a quantity.
Term
 What is a time interval?
Definition
 A change in time.
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