It is define as the flow of energy from a warm object to a cooler object.
Heat
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What are the three ways in transferring heat?
Conduction Convection Radiation
15
It is made of a tungsten wire enclosed in a glass bulb from which air has been removed.
Filament lamps
15
What is the melting point of tungsten as a filament?
3400 degrees Celsius
15
An electronic component that has mercury vapor in the glass tube which emits ultraviolet radiation when switched on.
Fluorescent lamps
15
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
15
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
15
Give example of semiconductor
Transistor, solar cells, silicon and more
15
What are the examples of insulator inside the video presentation?
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
15
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
15
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
15
It has a conductivity value between that of a conductor such as silver and an insulator, such as mica.
Semiconductor
15
It prevents the flow of energy between two objects.
Insulator
15
It is the transfer of heat through space in the form of waves.
Radiation
15
The heat transfer in liquids and gases as particles circulate in currents. What kind of heat transfer is this?