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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 to hot to touch | conduction |
water boiling | convection |
is wood and insulater or conducter | insulater |
is metal in inuslater or conducter | conducter |
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 |
occurs most easily in liquid and solids | conduction |
Conductor | transfers thermal energy very well |
Insulator | does not transfer thermal energy very well |
good conductors | silver, metal, gold, nickel, copper |
good insulators | plastic, wood, paper, rubber, glass |