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Grade 9 week 6
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It is the heat transfer through a substance or from a substance to another by direct contact.
Conduction
The heat transfer in liquids and gases as particles circulate in currents. What kind of heat transfer is this?
Convection
It is the transfer of heat through space in the form of waves.
Radiation
It prevents the flow of energy between two objects.
Insulator
It has a conductivity value between that of a conductor such as silver and an insulator, such as mica.
Semiconductor
This is most obviously applied to sound studios, however, it can also be applied to regular buildings to prevent disturbances between rooms and properties.
Sound insulation
A kind of insulation this can range from the coating of wire in household circuitry through to the insulation in capacitors in commercial and consumer goods.
Electrical insulation
this normally comes in It is a form of thermal insulation to regulate the heat flow between a building and the outside environment.
Wall insulation
What are the examples of insulator inside the video presentation?
Wall insulation Furnace insulation Sound insulation Electrical insulation
Give example of semiconductor
Transistor, solar cells, silicon and more
One of the main ways of explaining differences in conduction. This uses the ‘band’ of material to explain a number of physical properties of conduction
Band Theory
States that energy can neither be created nor destroyed but can be converted from one form of energy to another.
Law of conservation of energy
An electronic component that has mercury vapor in the glass tube which emits ultraviolet radiation when switched on.
Fluorescent lamps
What is the melting point of tungsten as a filament?
3400 degrees Celsius
It is made of a tungsten wire enclosed in a glass bulb from which air has been removed.
Filament lamps
What are the three ways in transferring heat?
Conduction Convection Radiation
It is define as the flow of energy from a warm object to a cooler object.
Heat
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