Relier Pairs Heat transferVersion en ligne To help the student to know more about heat transferring par Nermeen Elgenedy 1 When placing your hand on a warm surface, your hand will absorb heat from that surface. 2 Heat is transferred from a warmer object to a cooler object through direct touch. 3 When you exercise and begin to sweat, the evaporation of sweat from your skin cools you down. 4 Heat is transferred to nearby objects without physically touching them. 5 Heat is transferred when the warm air around the object replaced by a cooler air. 6 When you sit down near a fire, you may feel warmer because the fire is radiated heat toward your cooler body. 7 When you sit in front of a fan, the fan moves air around you quickly to replace the warm air around your body with cooler air. 8 Heat causes perspiration which is lost from the body surface when changed from liquid to vapor. Radiation Conduction Radiation Example Evaporation Evaporation Example Convection Example Convection Conduction Example
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