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23 Cards in this Set
- Front
- Back
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vector *names*
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displacement, acceleration, velocity, force, moment, magnetic field
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weight
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the gravitational force on a moment
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newton
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1 newton is the force that causes a mass of 1kg to accelerate at 1 m's -2
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kinetic energy
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work an object can do by vitue of its speed
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work done
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the transfer of energy
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moment of a force
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the turning effect of a single force
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stress
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force per unit cross-sectional area
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pressure
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force per unit area
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scaler quantity *names*
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density, temp,speed,power, pressure, p.d
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moment
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the force multiplied by the perpendicular distance from a stated point
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principle of a moment
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for a body in a rotational equilibrium, the sum of the clockwise moment equals the sum of the anticlockwise moment
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strain
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extension per unit length
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velocity
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the rate of change of displacement with respect in time
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conservation of energy
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energy cannot be made or destroyed only changed from one form to another
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acceleration
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the rate of change of velocity with respect in time
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density
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mass per unit volume
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displacement
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the rate of change of velocity with respect in time
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gravitational potential energy
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the energy stored in an object by virtue of its position in a gravitational field
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couple
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a pare of equal and parallel but opposite forces which tends to produce rotation only
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breaking distance
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distance the car takes to stop after the breaks are being being applied
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newton second law of motion
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the direction of the vector is the same as the direction of the acceleration vector
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newtons first law of motion
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Every object instate of uniform mation tends to remain in that state of motion unless an external force is applied to it
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newtons third law of motion
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for every action there is an equal and opposite re-action
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