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i'm stuck on conduction,convection and radiation
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Convection: Thermal energy transfer via contact with a gaseous medium (like air, oxygen, nitrogen etc);
Radiation: energy transfer via electromagnetic radiation over a distance that does not need a material for transfer. e.g. a vacuum.
Conduction - process of heat energy where vibrating particles pass on their extra kinetic energy to neighbouring particles
Convection - process of a fluid (liquid or gas, NOT a solid) rising as a result of becoming less dense when heated and then falling when become more dense (causing a continuous circulation)
Radiation - process of emitting heat (the hotter an object, the more INFRAred radiation emitted)