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What is work done?
It is the force causing a motion multiplied by the distance travelled in the direction of the force.
What is the equation for work done?
force x distance x cos(angle)
What is work equal to?
Rate of energy transfer.
What is power?
The rate of energy transfer.
What is the area under a force-displacement graph equal to?
Work done.
What is efficiency?
It is a measure of how efficiently a system transfers energy.
What is the efficiency equation?
Efficiency = output / input
What is the principle of energy conservation?
Energy cannot be created or destroyed, just transferred from one form to another.
What is change of gravitational potential energy?
mass x gravity x height
What is change of kinetic energy?
Kinetic energy = 1/2 mass velocity ^2
