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HEAT TRANSFER HEAT IS TRANSFERRED FROM A HOT RFEGION TO A COLD REGION.

Published byManuel Sandoval de la Fuente Modified over 5 years ago

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Presentation on theme: "HEAT TRANSFER HEAT IS TRANSFERRED FROM A HOT RFEGION TO A COLD REGION."— Presentation transcript:

1 HEAT TRANSFER HEAT IS TRANSFERRED FROM A HOT RFEGION TO A COLD REGION

2 CONDUCTION HEAT IS TRANSFERRED THROUGH VIBRATION OF MOLECULES

3 CONDUCTION WHEN A METAL IS HEATED THE MOLECULES VIBRATE FASTER.
THEY COLLIDE WITH THE NEIGHBOURING MOLECULESTRANSFERING HEAT

4 WHICH IS THE BEST CONDUCTOR?
COPPER CONDUCTS HEAT EVENLY THROUGH ITS SURFACE IRON DOES NOT COPPER GOOD CONDUCTOR OF HEAT

5 CONVECTION THE CIRCULAR MOVEMENT OF FLUID IS CALLED CONVECTION
CONVECTION ONLY TAKES PLACE IN LIQUID AND GASES

6 CONVECTION CURRENT IN OVENS
TO HEAT THE WHOLE OVEN THE HEAT MUST COME FROM THE BOTTOM

7 RADIATION TRANFER OF HEAT BY WAVES
HEAT TRAVELS FROM THE SUN TO EARTH AS WAVES IT DOES NOT NEED A MEDIUM IT TRAVELS AS FAST AS THE SPEED OF LIGHT

8 WHICH MATERIALS ARE GOOD EMITTERS?

9

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