Slide fizik

3. FORM 4
Chapter 2
FORCES &
MOTION 1
Teacher Faiz
2.1 LINEAR MOTION
2.2 LINEAR MOTION GRAPH
2.3 FREE FALL MOTION
2.4 INERTIA
2.5 MOMENTUM
2.6 FORCE
2.7 IMPULSE & IMPULSIVE FORCE
2.8 WEIGHT

5. TELEGRAM
POLL

6. 2.1 LINEAR MOTION

10. Calculating
velocity

11. Calculating
acceleration

14. ……………………………………………

15. 1 2 3 4 5
Will be discuss later in 2.2

20. 2.2 LINEAR MOTION GRAPH

27. Analysing
Displacement –time
graph

29. 20 m/s

30. 20 m/s
0 m/s

31. 20 m/s
0 m/s
-25 m/s

32. 20 m/s
0 m/s
-25 m/s
8.33m/s
0 m/s

33. 100m
100m
50m

35. Analysing
Velocity –time
graph

36. 0 m/s2

37. 0
0.25

38. 0
0.25
-0.5

39. 0
0.25
-0.5
0

40. 0
0.25
0
-0.5
0.3

41. 500
135
250 225

42. 2.3 FREE FALL MOTION

44. With air resistance Without air resistance
WEIGHT
WEIGHT WEIGHT
WEIGHT
Air
resistance
Air
resistance
X
FREE
FALL
FREE
FALL
FREE
FALL

45.  THE VALUE OF g CHANGES FROM PLACE TO PLACE.
 GENERALLY TAKEN AS
9.81 ms^2

48. 2.4 INERTIA
CONCEPT OF INERTIA
Object placed on a table remain stationary even though
the table cloth under the objects is jerked by the entertainer
This is due to inertia.

49. INERTIA is the tendency of an object to remain at
rest or, if moving, to continue its motion in a
straight line at uniform velocity.

50. Is it easier to move
a bowling ball
or a football?
Which ball is
difficult to
stop when in
motion?

51. RELATIONSHIP BETWEEN MASS &
INERTIA
Object with bigger mass is
more difficult to stop or set in motion .
Football
Bowlin
g
ball

54. 2.5 MOMENTUM

55. the total momentum before collision
is equal to
the total momentum after collision
if no external force acting on it

56. 𝒎𝟏𝒖𝟏 + 𝒎𝟐𝒖𝟐 = 𝒎𝟐 𝒗𝟐 + 𝒎𝟐𝒗𝟐

57. V
𝒎𝟏𝒖𝟏 + 𝒎𝟐𝒖𝟐 = (𝒎𝟏 + 𝒎𝟐) 𝒗

58. NEWTON THIRD LAW OF MOTION
States that
FOR EVERY ACTION
THE IS A REACTION OF EQUAL MAGNITUDE
BUT IN OPPOSITE DIRECTION

61. 2.6 FORCE
Relationship between :
1. Force,F & acceleration,a
2. Mass,m & acceleration,a

62. F & a

63. m & a

67. 2.7 IMPULSE & IMPULSIVE FORCE

68. IMPULSE is
a change in
momentum
IMPULSIVE
FORCE
is the rate of change
of momentum

73. 2.8 WEIGHT

75. Mass & weight

77. PAPER 2
QUESTIONS