# Shared Flashcard Set

## Details

Physics Vocabulary
Chapter 4
10
Physics
11/06/2006

Term
 Newton's First Law
Definition
 An object continues in a state of rest or in a state of motion at a constant speed along a straight line, unless compelled to change that state by a net force.
Term
 Newton's Second Law
Definition
 When a net external force acts on an object of mass M, the acceleration A that results is directly proportional to the net force and has a magnitude that is inversely proportional to the mass. The direction of the acceleration is the same as the direction of the net force. F=MA
Term
 Newton's Third Law
Definition
 Whenever one body exerts a force on a second body, the second body exerts an oppositely directed force of equal magnitude on the first body.
Term
 mass
Definition
 measure of inertia
Term
 weight
Definition
 measure of the gravitational force that the earth exerts on an object.
Term
 normal force
Definition
 the force component that is perpendicular to the surface that an object is in contact with
Term
 equilibrium
Definition
 when an object has zero acceleration.
Term
 net force
Definition
 vector sum of all applied external forces
Term
 inertia
Definition
 the natural tendency of an object to remain at rest or in motion at a constant speed along a straight line.
Term
 friction
Definition
 the force component that is parallel to the surface that an object is in contact with
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