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# Forces

TermDefinition
Force A push and pull exerted on an object.
Newton A unit of measure that equals the force required to accelerate 1 kilogram of mass at 1 meter per second per second.
Net Force The overall force of an object when all the individual forces acting on it are added together.
Unbalanced Forces Forces that produce a nonzero net force, which changes an objectâ€™s motion.
Balanced Forces Equal forces acting on an object in opposite directions.
Friction The force that one surface exerts on another when the two surfaces rub against each other.
Static Friction Friction that acts on objects that are not moving.
Sliding Friction Friction that occurs when one solid surface slides over another.
Rolling Friction Friction that occurs when an object rolls over a surface.
Fluid Friction Friction that occurs as an object moves through a fluid.
Gravity The force that pulls objects toward each other.
Mass A measure of how much matter is in an object.
Weight A measure of the force of gravity.
Free Fall The motion of a falling object when the only force acting on it is gravity.
Projectile An object that is thrown.
Compression The part of a longitudinal wave where the particles of the medium are close together.
Tension Stress that stretches rock so that it becomes thinner in the middle.
Air Resistance The fluid friction experienced by objects falling through the air.
Created by: lopez.ash

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