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Heat Transfer
Convection, Conduction, and Radiation
Question | Answer |
---|---|
heat from the sun | radiation |
absorption of electromagnetic waves of the sun | radiation |
metal seat buckle becomes too hot to touch | conduction |
water boiling | convection |
Is wood an insulator or conductor? | insulator |
Is metal an insulator or conductor? | conductor |
Cool air ________________, and warm air ___________________. | sinks, rises (convection) |
how a stove heats | |
how a microwave heats | |
Heat energy is transferred when molecules within a substance collide. | |
requires no medium for transfer | radiation (electromagnetic waves) |
Heat is transferred because of density differences. | |
Conduction is the transfer of heat energy by ______________. | molecular contact (direct contact) |
Heat energy is transferred in waves. | |
Energy transferred through a fluid or gas where hot rises and cold sinks. | |
another name for heat energy | thermal energy |
The amount of heat energy transferred depends on ___________________. | the difference in temperature between the objects. |
Thermal energy moves from ______________ to ________________objects. | warmer, cooler |
occurs most easily in liquid and solids | |
transfers thermal energy very well |