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Chapter 10 Forces

Net Force The overall force on an object when all the individual forces acting on it are added together.
Law of conservation of Momentum The rule that in the absence of outside forces the total momentum of objects that interact does not change
Tension An elastic force that stretches or pulls on the molecules in matter
Sliding Friction Friction that occurs when one solid surfaces slides over another
Unbalanced Forces Forces that cause an object's velocity to change
Air resistance The fluid friction experienced by objects falling through the air
Gravity The force that pulls objects toward each other
Centripetal force A force that causes an object to move in a circle
Rolling Friction Friction that occurs when an object rolls over a surface
Newtons The SI unit used for the magnitude, or strength, of a force
weight A measure of the force of gravity on an object
Static Friction Friction that acts on objects that are not moving
Compression An elastic force that squeezes or pushes the molecules in matter together
Inertia The tendency of an object to resist any change in its motion
Mass A measure of how much matter is in object
Momentum The product of an object's mass and velocity
Free Fall The motion of a falling object when the only force acting on it is gravity
Friction The force that one surface exerts on another when the two surfaces rub against each other
Projectile An object that is thrown
Fluid Friction Friction that occurs as an object moves through a fluid
Force A push or pull exerted on an object
Balanced Forces Equal forces acting on an object in opposite directions
Satelite Any object that orbits around another object
Created by: Asvega