Energy Scavenger Hunt

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Transcript Energy Scavenger Hunt 

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Appliance
Power Usage
(W)
(hrs)
Daily
Energy
(kWh)
Monthly
Energy
(kWh)
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
TOTAL
*1 kWh = 1 lb coal
**1 lb coal = 1.4 lb CO2
Monthly
Coal
Burned
(lbs)*
Monthly
CO2
Emitted
(lbs)**
What is Power?
β€’ Power is the rate at which electric energy is
transferred by an electric circuit
β€’ Power is measured in Watts
β€’ To calculate power:
𝑃(π‘€π‘Žπ‘‘π‘‘π‘ ) = 𝑉 π‘£π‘œπ‘™π‘‘π‘  π‘₯ 𝐼(π‘Žπ‘šπ‘π‘ )
β€’ V is voltage (pressure of electrons)
β€’ I is current (flow of electrons)
Power vs. Energy
πΈπ‘›π‘’π‘Ÿπ‘”π‘¦ π‘˜π‘Šβ„Ž = π‘ƒπ‘œπ‘€π‘’π‘Ÿ π‘Š π‘₯ π‘‘π‘–π‘šπ‘’(β„Žπ‘Ÿπ‘ )
β€’ Using Less:
1. Energy efficiency (less W)
2. Energy conservation (less hrs)