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Force and Motion

TermDefinition
Speed The distance that an object travels
Velocity The speed that an object travels in a particular direction
Acceleration Rate at which velocity changes
Force A pull or push
Net Force Total of all forces acting on an object
Free Body Diagrams Used to show relative magnitude and direction of all forces acting upon an object in a given situation
Normal Force Contact between two forces
Friction A force that opposes motion between any surfaces that are touching
Static Friction A type of friction that acts on objects when they're resting over a surface
Sliding Friction A type of friction that acts on objects when they're sliding over a surface. It's weaker than static friction
Fluid Friction A type of friction that acts on objects that are moving through a liquid
Normal Perpendicular
Gravity A force of attraction between objects, due to their mass
Mass Amount of matter in an object
Weight A measure of gravitational force on an object
Terminal Velocity Constant velocity
Newton's 1st Law of Motion (Law of Inertia) An object at rest or in motion will stay at rest or in motion unless an unbalanced force acts upon it.
Newton's 2nd Law of Motion Acceleration is inversely related to mass
Newton's 3rd Law of Motion Every action has an opposite or equal reaction
Inertia Tendency of all objects to resist any change in motion
Created by: Junon
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