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P2 Mechanical Energy Work & Power
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Gravity
Terms in this set (8)
What is the equation for Potential Energy?
PE = mass x height x gravitational field strength
What sort of energy does a moving object have?
Kinetic energy
What is the equation for Kinetic energy
KE = 0.5 x mass x (speed)squared
If you double the mass of an object, by how much will its KE increase?
it will double
If you double the speed of an object, by how much will the KE increase
It will be 4 x
How do you calculate work done?
WD = force x distance
What is Power?
Power is the rate at which work is done
How do you calculate power?
Power = Work done / time
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