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19 Cards in this Set
- Front
- Back
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Types of Energy |
1) Light energy 2) Heat Energy 3) Kinetic Energy 4) Sound Energy 5)Electrical Energy 6)Nuclear Energy 7)Chemical Potential Energy 8)Gravitational Potential Energy 9)Elastic Potential Energy |
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What happens to Wasted Energy? |
Wasted energy eventually takes the form of heat energy and dissipates (spreads out) into the surroundings. |
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What is the Conservation of Energy? |
Energy cannot be created or destroyed. It can only transform/transfer into another energy/place |
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Energy is measured in...? |
Energy is measured in Joules (J) |
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Power is measured in...? |
Power is measured in Watts (W) |
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Current is measured in...? |
Current is measured in Amps (A) |
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Voltage is measured in...? |
Voltage is measured in Voltage (V) |
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What is Current? |
Current is the rate of flow of charge |
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What is Voltage? |
Voltage is the difference in electrical energy per unit of charge before and after going through a device |
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What is a Transducer? |
A Transducer is a device that casues energy transformation |
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What is Energy Transfer? |
Energy transfer is when energy goes from one place to another |
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What is Energy Transformation? |
Energy transformation is when energy change from one type to another |
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Efficiency=? |
Efficiency = useful output/ Time
(x100)% |
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GPE=? |
GPE= Mass X Gravity X Height |
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Energy=? |
Energy= Power X Time |
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Electrical Power=? |
Electrical Power= Current X Voltage
(I) X (V) |
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What are known as Units of Electricity? |
KWh are known as units of electricity
e.g. 1KWh = 1unit |
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Cost=? |
Cost = Price per unit X Number of units |
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1KW=? |
1KW= 1 000 W |
