To see is something is warm or cold blooded / to see is you have good insulation in your house / to see how warm something is.
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Emit
Something that gives something off. E.g. Sun emits heat.
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Absorb
Something that collects something. E.g. sponge absorbs water.
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Thermal Radiation
Thermal Radiation is heat energy that is given off by all objects. Hotter, larger, objects give off more thermal radiation than smaller cooler ones.
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Convection
Convection is heat transfer by mass motion of a fluid such as air or water when the heated fluid is caused to move away from the source of heat, carrying energy with it.
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Radiation
In physics, radiation is the emission or transmission of energy in the form of waves or particles through space or through a material medium.
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Conduction
Conduction is the process by which heat energy is transmitted through collisions between neighboring molecules.
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Thermal Absorbtion
Black is the best thermal absorber of radiation.
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Thermal Emission
Silver surfaces are bad emitters of thermal radiation.
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Power
How much energy is transferred to an electrical devise in a given time.
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Payback
The time it takes for you to ave saved enough money on your energy bill to counter the cost of the purchase.
A step-down transformer is used to decrease the voltage.
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Substation
High voltage transmission lines transfer the electricity to a substation where the electricity goes through a step-down transformer.
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Step-Up Transformer
A step-up transformer is used to increase the voltage
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National Grid
When electricity has been generated it needs to be distributed to consumers. The electricity you use is transferred around the country by the National Grid.
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Main Grid
This is the electricity that is available whenever you switch on an appliance at home
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Other cards in this set
Card 2
Front
Something that gives something off. E.g. Sun emits heat.
Back
Emit
Card 3
Front
Something that collects something. E.g. sponge absorbs water.
Back
Card 4
Front
Thermal Radiation is heat energy that is given off by all objects. Hotter, larger, objects give off more thermal radiation than smaller cooler ones.
Back
Card 5
Front
Convection is heat transfer by mass motion of a fluid such as air or water when the heated fluid is caused to move away from the source of heat, carrying energy with it.
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