This document discusses different concepts relating to heat and temperature. It defines thermal energy as the kinetic energy resulting from the random motion of atoms and molecules. Heat is defined as a transfer of energy between systems or objects due to a temperature difference. The document discusses three main ways heat can be transferred: conduction through direct contact between objects, convection through fluid motion, and radiation through electromagnetic waves. It also discusses temperature as a measure of particle kinetic energy and introduces different thermometric scales like Fahrenheit, Celsius and Kelvin that are used to measure temperature.

1. 1
Heat and
Temperature

2. Thermal Energy
• Thermal energy a form of
kinetic energy
characterized by
randomness of motion at
the atomic and molecular
levels.
2

3. Internal Energy
•Internal energy is the
grand total of all the
particles that make an
object.
3

4. Heat
•Heat is energy in
transfer between a
system and its
surroundings caused
by temperature
differences. 4

5. Heat
•The transfer can
occur in different
ways.
5

6. 6
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7. 7

8. Conduction
• Conduction occurs when two
things at different
temperatures touch each
other and energy directly
transfers from the material in
the hotter object to the
material in the colder object
at the point of contact. 8

9. Conduction
• During conduction, heat is
transferred through the
vibration of molecules in a
substance. As something
gets warmer, it begins to
increase the vibration and
movement of the molecules
that it consists of.
9

10. Conduction
•Heat transfer through
solids.
10

11. 11

12. Why are most
cooking pots and
pans made up of
metals?
12
Let’s check your
knowledge!

13. Why are most pan
and pot handles
made up of plastic
or wood?
13
Let’s check your
knowledge!

14. Convection
•Transfer of heat by mass
motion of a fluid such as
air or water when the
heated fluid is caused to
move away from the
source of heat, carrying
energy with it. 14

15. Convection
Current
•Warm fluid rises, cold
fluid sinks.
15

16. 16

17. 17

18. Check your
knowledge!
When there is a fire,
why must you crawl on
the ground?
18

19. Radiation
•The transfer of heat by
EM waves such as
visible light, infrared
and ultraviolet
radiation. 19

20. Radiation
•This heat transfer will
occur even if there
were nothing but
vacuum between you
and the source of heat.20

21. 21

22. 22

23. 23

24. 24

25. 25

26. 26

27. Temperature
•Temperature refers
to the measure of the
kinetic energy of the
particles or
molecules in a
substance. 27

28. Construct a concept map
about heat and temperature
using the following terms
below:
a.Thermal energy
b.Heat (conduction,
convection, radiation)
c.Temperature
28

29. Construct a concept map
about heat and temperature
using the following terms
below:
e. Calorie
f. Heat flow
g. Hot to cold
h. Internal energy 29

30. 30
Thermometric
Scales

31. Thermometric
Scales
•Fahrenheit, Celsius
and Kelvin.
31

32. Thermometric
Scales
32

33. Thermometric
Scales
33

34. Thermometric
Scales
34

35. Thermometric
Scales
35