Heat Transfer.

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Presentation transcript:

Heat Transfer

You can not transfer cold or give someone cold! Heat Transfer Is the transfer of thermal energy from a hotter object to a cooler one until both objects are the same temperature. You can not transfer cold or give someone cold!

3 ways that heat is transferred within the atmosphere Radiation Conduction Convection

Heat Transfer cards Part I: Read the article about heat transfer then create a pile for each type of heat transfer.

How does heat energy get from the Sun to the Earth? RADIATION ?

Radiation The direct transfer of energy by infrared electromagnetic Waves. Sun, fire, light bulbs

Conduction The direct transfer of heat from one substance to another substance that is touching. Objects have to touch!!! Ironing Clothes Stepping on hot sand. That’s Hot

The transfer of heat by movement of a fluid (liquids and gases). Convection The transfer of heat by movement of a fluid (liquids and gases). Cooking peas in water Blow Drying your Hair. Dryer OVEN

Part II: recheck your heat transfer piles Heat Transfer cards Part II: recheck your heat transfer piles

A space heater heating the air in the room. Convection

The sun heating your skin on a warm summer day. Radiation

A metal spoon gets hot when you stir your hot chocolate. Conduction

Warming yourself by the fireplace. Radiation

How a hot-air balloon works Convection

Oven that has a fan in it to circulate the heat Convection

How it’s hotter upstairs than it is down stairs when you have the heater on. Convection

Cooking marshmallows on a campfire Radiation and Convection

How you have to be careful touching the end of a metal pot. Conduction

Cooking spaghetti in boiling water. Convection

Warmth you can feel when you put your hand near a turned on light bulb. Radiation

Warming yourself with a heating blanket Conduction

Type of heat transfer that heats a greenhouse. Radiation

Drying your clothes in a dryer. Convection

A hot pot on the stove. Conduction

When your hands get warm from holding a hot mug. Conduction