# Shared Flashcard Set

## Details

Conceptual Physics
Newtons Three Laws
22
Physics
02/05/2011

Term
 Newton's First Law of Motion
Definition
 Every object continues in its state of rest, or uniform motion in a straight line, unless it is compelled to change that state by forces impressed on it.
Term
 Newton's 2nd Law of Motion
Definition
 The acceleration of an object is directly proportional to the net force acting on the object,is in the direction of the net force, and is inversely proportional to the mass of the object.
Term
 Newton's 3rd Law of motion
Definition
 Whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first.
Term
 Net Forces
Definition
 The vector sum of all the forces acting on an object.
Term
 Force
Definition
 A push or pull
Term
 Inertia
Definition
 The tendency of things to resist changes in motion.
Term
 Equilibrium Rule
Definition
 ΣF=0; Sum of forces acting on an object equals zero for any object or system of objects in equilibrium
Term
 Speed
Definition
 How fast something moves; the distance traveled per unit of time.
Term
 Velocity
Definition
 The speed of an object and a specification of its direction of motion.
Term
 Acceleration
Definition
 The rate at which velocity changes with time;the change in velocity may be in magnitude,or in direction, or both.
Term
 Free Fall
Definition
 Motion under the influence of Gravity only.
Term
 Speed Formula
Definition
 S=d/t
Term
 Average Speed Formula
Definition
 total distance covered/time interval
Term
 Acceleration
Definition
 change in velocity/time interval
Term
 Acceleration (along a straight line)
Definition
 change in speed/time interval
Term
 Velocity acquired in free fall, from rest
Definition
 v=gt
Term
 distance fallen in free fall
Definition
 d=1/2gt^2
Term
 Friciton
Definition
 The relative force that opposes the motion or attempted motion of an object either past another object with which it is in contact or through a fluid.
Term
 Mass
Definition
 The quantity of matter in an object. More specifically, it is the measure of the inertia or sluggishness that an object exhibits in response to any effort to stop it, deflect it, or change it in any way its state of motion.
Term
 Weight
Definition
 The force due to gravity on an object.
Term
 Vector Quantity
Definition
 A quantity that has both magnitude and direction. examples are force, velocity, and acceleration.
Term
 Scalar
Definition
 A quantity that has magnitude but not direction. Ex. are mass, volume, and speed.
Supporting users have an ad free experience!