Science 7 - 3rd Quarter

4. Module 5:
HEAT

5. Thermal Energy
form of energy
combinationof all the movement (kineticenergy) of particles making
up an object
POSSESS BYALL OBJECTS

7. what is heat???
also a form of ENERGY
FORMED as thermal energy moves

8. Heat transfer
the flow of heat within an object and from
oneobject to another

9. Temperature
 a quantitative measure of the warmth or coldness of an
objector substance
 the degree of hotness or coldness ofan object

10. Thermometer
 an instrumentused to measure the temperature of an
object
 Units:degree Celciusor
degree Fahrenheit

12. What is needed for heat
transfer to happen?
To which directionis
heat being transferred?

13. “
”
1. Labelthe small andbig containers (1 and2
for the small cupsand Aand Bfor the big
containers.

14. “
”
5. Carefully place container 1 inside
container A. This will be your Setup 1.

15. “
”
6. Place container 2 inside container B.
This will be your Setup 2.

16. Modes of heat transfer

17. How does heat
transfer?
Conduction
Convection
Radiation

18. Conduction
takes place between
objects that are in
contact with each other.
transfer of heat by
vibration.

19. The energy from the object of
higher temperature is transferred to
the other object through their
particles that are close or in contact
with each other.

20. H
i
g
h
t
e
m
p
e
r
a
t
u
r
e
L
o
w
t
e
m
p
e
r
a
t
u
r
e

21. During this process, only
the energy moves, not the
matter itself.

23. Example
Think of a metal spoon put
in a bowl of a hot
champorado that you were
about to eat when you
suddenly remembered that

24. heat conductivity
different materials transfer heat
faster than the other.
good conductors-fast transfer
insulators-slow or even prevent
transfer

26. Generally, metals are
good conductors of
heat.

28. Convection
transfer of heat by the
movement of particles.
happens only in fluids
(liquids and gases)

34. Radiation
refers to the emission of
electromagnetic waves
no particles are involved
can take place even in
vacuum.

36. Think...

39. Mental Exercise
1. Energy possess by all
objects due to the
movement of particles.

40. Mental Exercise
2. An instrument use to
measure the hotness or
coldness of objects.

41. Mental Exercise
3. Give one unit use to
describe how hot or cold
an object is.

42. Mental Exercise
4. True or False?
Cold objects transfer
cold to warmer objects.

43. Mental Exercise
5-7. Give the three ways
on how heat can be
transferred.

44. Mental Exercise
8. Transfer of heat by
circulating particles.

45. Mental Exercise
9. Type of heat transfer
where no matter is
needed.

46. Mental Exercise
10. Type of heat transfer
where a spoon gets
heated after being dip in
hot water for few

47. Mental Exercise
11. Considered as good
conductors of heat.

48. Mental Exercise
12. Type of energy
produced as thermal
energy moves.

49. Mental Exercise
13. Type of materials
that are poor conductors
of heat.

50. 14. ________________
15.
____________
__