Physics Chapter 5 Work Done
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7 Terms
Define work done
The product of the magnitude of the force and the distance moved by the object in the direction of the force - J/Joules
Define kinetic energy
The energy associated with the motion of an object with mass. The SI base unit is kg•m²•s⁻².
Define Gravitational Potential Energy.
The energy of an object due to its position in a gravitational field. =mgh
Define Elastic Potential Energy.
The energy stored by an object as a result of a reversible change in its shape.
State the principle of conservation of energy.
In a closed system, energy cannot be created or destroyed but only transferred from one form to another.
The rate of work done is equal to ______.
Power
What is efficiency?
Efficiency (%) = (Useful output power/Total input power) x 100
Note 
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