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17 Cards in this Set
- Front
- Back
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weight
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a force determined by mass of an object times gravity w=mg
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net force
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the total sum of forces acting on a given object
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pressure
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the amount of force per unit area, measured in pascals (newtons per square meter
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pascal
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the unit of pressure = one newton per square meter
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fluid
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any material that flows
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vector
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can describe:
velocity acceleration force displacement motion |
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Pascal's principle
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the idea that force in a fluid is transferable to all parts of that fluid
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normal force
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any force that acts perpendicular to the plane of motion
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coeffficient of friction
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the number associated with the interaction of two surfaces that determines frictional force
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terminal speed
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the maximum speed reached by a falling objecct slowed with air resistance (drag)
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momentum
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mass x velocity
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impulse
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the change in momentum of an object
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law of conservation of momentum
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in closed system (no net external forces) the momentum does not change
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action force
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the force of an object as it makes contact with another (initiating force)
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newton's 3rd law
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the law that describes the effect of different object on eachother in terms of force (for every action there is n equal and opposite reaction)
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Newton's 2nd law
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the acceleration produced by a net for on an object is directly proportional to the magnitude of the net force and inversely proportional to the mass of the object
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newton's 1st law
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every object continues in a state of rest, or of motion in a straight line at a constant speed, unless it is compelled to change that state by forces exerted upon it
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