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Heat Transfer
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 | conduction |
how a microwave heats | radiation |
conduction | Heat energy is transferred when molecules within a substance collide. |
requires no medium for transfer | radiation (electromagnetic waves) |
Convection | Heat is transferred because of density differences. |
Conduction is the transfer of heat energy by ______________. | molecular contact (direct contact) |
radiation | Heat energy is transferred in waves. |
Energy transferred through a fluid or gas where hot rises and cold sinks. | convection |
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 |