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7.conductors of heat. For examples,aluminum, iron and copper. The materials which do not allow heat to pass through them easily are poor conductors of heat such as plastic and wood.
8.Some materials conduct thermal energy faster than others. For example, the pillow in your room may the same temperature as the metal doorknob, but the doorknob feels cooler to the touch. In general, good conductors of electricity (metals like copper, aluminum, gold, and silver) are also good heat conductors, whereas insulators of electricity (wood, plastic, and rubber) are poor heat conductors.
9.Conduction is the most significant form of heat transfer within a solid object or between solids in thermal contact. Conduction is most significant in solids, and less though in liquids and gases, due to the space between molecules.
10.Convective heat transfer, often referred to in thermodynamic contexts simply as convection (though not to be confused with Convection as used in other contexts), is the transfer of heat from one place to another by the movement of fluids. Convection is usually the dominant form of heat transfer in liquids and gases.
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