1. Contents BiografiIndicator
The Heat Transfer

2. Contents BiografiIndicator
The Heat Transfer

3. Contents BiografiIndicator
The Heat Transfer

4. The Heat Transfer

5. HEAT TRANSFER
 Heat always moves from a warmer place to a cooler place.
 Hot objects in a cooler room will cool to room
temperature.
 Cold objects in a warmer room will heat up to room
temperature.

6. Hot Coffe...
In stir with a
spoon

8. The amount of heat Q each specific time interval defined as follows :
Q = heat delivered (J)
A = cross-sectional area of objects (m2)
ΔT = T1 - T2 = temperature difference between
the two ends of the object (‘C)
l = distance between the two parts of different
objects temperature (m)
Δt = time interval required (s)
k = constant comparison / thermal conductivity
substance (J / sm’C)
Note :

10. Water cooler
More hot
water

12. The amount of heat Q each specific time interval defined as follows :
Q = heat delivered (J)
A = cross-sectional area of objects (m2)
ΔT = T1 - T2 = temperature difference between
the two ends of the object (‘C)
k = constant comparison / thermal conction
substance (J / sm’C)
NOTE :

14. The third method of heat transfer
How does heat energy get
from the Sun to the Earth? There are no particles between
the Sun and the Earth so it
CANNOT travel by conduction or
by convection.
?
RADIATION

15. Hii...
My Name is Dwi Risky Pratiwi. You
can call me Kiki. I live at Marene
Street. Now, I study at Jambi
University in Grade 2.
Oke I think that enough.
Lets to materi !