Energy Transformations

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9 Terms

1
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Forms of Energy

Kinetic Energy, Thermal Energy, Chemical Energy, Electrical Energy, Light Energy, Sound Energy, Potential energy

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Car Engine

chemical energy —> Thermal and kinetic energy

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Toaster

electrical energy —> thermal energy

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Width of the arrow
The number/ worth
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Horizontal arrow
Energy used (Joules used)
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Vertical arrow
Energy wasted
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Principle of Conservation of Energy

Energy cannot be created or destroyed. It can only be transformed from one form to the other

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Efficiency formula
Efficiency (%)=(Useful Output energy)/(Total Input energy) x 100
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Analyzing Efficiency with Sankey Diagrams
The width of useful energy arrows v.s. The width of wasted energy arrows.