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3 cards from this section. Quick, good the night before a test.
Define electrical energy.
Think about how electricity operates in your household appliances.
Name one application of electrical energy you use daily.
Consider what devices you turn on at home.
What is electrical energy?
Think about how you power your devices.
Energy efficiency helps to:
What happens when you use an energy-efficient light bulb?
If 500 Joules of input energy yields 400 Joules of output energy in a device, what is the efficiency percentage?
Use the efficiency calculation we've discussed before.
Describe how electricity generated from a wind turbine reflects the concept of energy transformation.
Think about the stages from wind to electricity.
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