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20 Cards in this Set
- Front
- Back
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Newton's First Law
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Inertia; an object will keep moving or stay at rest unless a net force acts on it
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Newton's Second Law
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more force causes more acceleration; more mass causes less acceleration; F=ma
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Newton's Third Law
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For every action there is an equal and opposite reaction
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force
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anything that causes a change or cause of motion; measured in Newtons; are vectors; any push or pull
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net force
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the net force is the result of all of the forces acting on an object; sum of all forces and has direction
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inertia
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the property of an object that resists change of motion; more mass=more inertia
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weight
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force of gravity pulling on mass; w=mg
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At equilibrium the following are true
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Fnet = 0N (no net force)
a = 0m/s2 (no acceleration) Change in velocity = 0m/s2 (constant speed) ex. object at rest |
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free body diagram
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a picture that represents an object and all of the forces that are acting on it
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system
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a part of the universe that has been chosen for study
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environment
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everything that surrounds a system
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non-contact force
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a force that can be exerted over a distance and does not require contact in order to be exerted
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contact force
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a force exerted when an object is in contact with another object (frictional force, air resistance, tension force, applied force, spring force)
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Force of Friction
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the force that goes against your force
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Tension Force
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anything that exerts energy in a long form
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Normal Force
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the force that pushes upward
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Kinetic Friction
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the force opposing friction so it moves
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Spring Force
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the force exerted by a compressed or stretched spring on any object attached to it
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Applied Force
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force that is applied to an object by a person or another object
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Static Friction
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the counteractive force that opposes the applied force and keeps the object at rest
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