# Shared Flashcard Set

## Details

Chapter 2 Pg. 61 in text
Descibing Motion, Acceleration, Motion and Forces
18
Physics
01/17/2009

Term
 what is a change of position of a Body?
Definition
 Motions
Term
 what is the measure of how far an object moved?
Definition
 Distance
Term
 what is the distance an object has moved and the direction an object has moved in position from the starting point?
Definition
 Displacement
Term
 This must be specified in order to determine if an object has changed position.
Definition
 A Referance Point
Term
 The Equation for Speed is
Definition
 Speed equals Distance/Time
Term
 The speed and direction of a moving object shows it's
Definition
 Velocity
Term
 What occurs when an object changes speed or changes it's direction?
Definition
 Acceleration occurs
Term
 An object speeds up if it's acceleration is
Definition
 in the same direction of it's motion
Term
 An object slows down if its acceleration is
Definition
 in the opposite direction of its motion
Term
 The Equation for Acceleration is
Definition
 Final Velocity - First Velocity / The amount of Time taken
Term
 What is Force
Definition
 Force is a push or a pull
Term
 What is the combination of all the forces action on an object?
Definition
 The object's Net Force
Term
 When is the force on an object blanced
Definition
 when the net force is zero.
Term
 What is Inertia
Definition
 the resistance of an object to a change in motion.
Term
 What is Newton's First Law of Motion
Definition
 The motion of an object won't change unless an unbalanced net force acts on it.
Term
 What is Acceleration
Definition
 The rate at which the Veolocity (Speed and direction) of an object changes.
Term
 What is Instantaneous Speed
Definition
 The speed at a given point in time.
Term
 What is Velocity
Definition
 The speed of an object and the direction of its motion.
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