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Force and Motion

Position The location of an object.
Motion Object's change in position relative to a reference point.
Reference point A place or object to which another location is compared.
Displacement The straight line distance between your starting and ending point.
Speed How quickly distance changes with time.
Average speed The total distance traveled divided by the total time of travel.
Instantaneous speed The speed of an object at a specific instant in time.
Velocity Speed combined with the direction of motion.
Vector A physical quantity that has both size and direction.
Acceleration A measure of how quickly velocity changes.
Inertia Resistance to change direction
Friction Resistance to move.
Newton's First Law of Motion An object at rest will remain at rest until acted upon an outside force, and an object in motion will remain in motion unless acted upon by an outside force.
Force A push or pull that acts on an object.
Newton's Second Law of Motion F=ma
Net force The combination of all forces acting on an object.
Balanced Forces A set of forces that cancel one another so there isno overall force on an object.
Unbalanced Forces A set of forces acting on an object that do not cancel each other out.
Potential Energy Stored Energy. PE=MGH
Kinetic energy Energy of motion. KE=1/2mvSqrd
Created by: 237461