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BCS Unit #8
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Gravity
Key Concepts:
Terms in this set (17)
Work
A quantity that measures the effect of a force over a distance
Work equation
W=Fd
Joule
Metric unit used to measure work
Joule equation
1J = 1Nm = 1kg*m/s^2
Unit energy is measured in
Joules
2 types of energy
Potential and kinetic
Potential energy
The stored energy resulting from the relative positions of objects in a system
2 types of potential energy
Gravitational and elastic
Elastic potential energy equation
PE = wh (Potential energy is equal to wright times height)
Gravitational potential energy equation
PE = mgh (Potential energy is equal to mass times acceleration due to gravity times height)
Kinetic energy
The energy of a moving object due to its motion (energy of motion)
Kinetic energy equation
KE = 1/2mv^2 (Kinetic Energy is equal to one-half mass times velocity squared)
Law of Conservational Energy
Energy can be transformed from one form to another, but energy cannot be created or destroyed
Power
The weight at which work is done
Power is measured in...
Watts (W)
Watt
Amount of power required to do one Joule of work in one second (Joule/second)
Watt equation
P = w/t
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