The difference in electrical energy between two points.
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What is resistance?
The resistance in current.
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What happens to the current in a series circuit?
The current remains the same.
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What happens to the current in a parallel circuit?
The current splits.
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How do you find the resistance?
Voltage dived by current.
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What happen to the voltage in a series circiut?
The voltage splits between the bulbs.
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What happens to the voltage in a parallel circuit?
The voltage stays the same.
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Give an example of an energy transfer system.
Electrical - light bulb - thermal and light energy
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What is the general energy transfer system?
Energy input + process + energy output
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What are the steps of a power station?
1. the fuel is burned to boil water to make steam. 2. the steam makes a turbine spin. 3. he spinning turbine turns a generator which produces energy. 4. the electricity goes to the transformers to produce the correct voltage.
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Where does the energy needed to boil water come from?
Fossil fuels or nuclear fuels.
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What happens with renewable energy sources? eg: wind/wave power.
They drive the generators directly.
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Other cards in this set
Card 2
Front
What does a sanki diagram do?
Back
It shows how much energy going in, how much useful energy comes out and how much energy is wasted.
Card 3
Front
How is the useful and wasted energy shown on a sanki diagram?
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