Homework:
- Ex 4J, p. 143-147 Energy, Work, Power
- Ex 4I, p.137-141, Springs
Potential Energy Stored in a Spring
Gravitational Potential Energy and Kinetic Energy Skate Park PhET Link - HTML
Work
Work is a transformation (change) of energy from one form to another form. Work only occurs when something is done.
- Power is the rate at which energy is transformed
- Power is the rate at which work is done
- Unit of power Watt (W = J/s)
Power vs Energy
Work, Energy & Power
Kinetic Energy & Gravitational Potential Energy
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