[2014] Precious: Conduction, Convection and Radiation

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by mikeeby
Last updated 1 year ago


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Conduction, Convection, and Radiation

Radiation-the emission of energy through electromagnetic waves or as moving subatomic particles, especially high-energy particles that cause ionization.

Conduction-the process by which heat or electricity is directly transmitted through a substance when there is a difference of temperature or of electrical potential between adjoining regions, without movement of the material.

Convection-the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.

An example of radiation is the heat we get from the sun because it emits electromagnetic waves to the earth. In addtion too much radioactive exposure can cause cancer because it kills cells

An example of convection is when you boil water and the heat rises. Another example is when you are at home and the upstairs is more hotter then downstairs because heat rises cold sinks.

An example of conduction is heat transfering stove to a pot. The pot is know as a conducter because it is able to conduct energy due to the elements such as metel iron.


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