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# Section 2

TermDefinition
Force
Newtons
Net Force
Unbalanced Forces
Balanced force
Friction
Static Friction- Friction that acts on objects that are not moving Friction that acts on objects that are not moving
Sliding Friction- Friction that occurs when one solid surface slides 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 towards each other
Mass- A measure of how much matter is in an object
Weight - A measure of the force of gravity on a object
Free Fall- The motion of a falling object when the only force acting on it is gravity
Air Resistance- The fluid friction experienced by object falling through the air
Projectile- An object that is thrown
Compression- An elastic force that squeezes or pushes the molecules in matter together
Tension- An elastic force that stretches or pulls on the molecules in matter
Created by: Gbenitez

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