Grade 6

5. Sack
trolley

6. Bottle
screw

16. Simple machine is any
of several devices with
no moving parts that
are used to modify
motion and force in
order to perform work.

17. Simple
machine
make work
easier.

19. Inclined Plane

20. It is a plane
tilted at an
angle, with one
end higher
than the other.
Inclined Plane

30. Examples of Inclined Plane

31. Examples of Inclined Plane

32. WEDGE
It is an inclined
plane or two
inclined plane
that meet each
other to form a
sharp edge.

35. Inclined Plane Wedge

39. Screw
It is actually a spiral
inclined plane. It is
composed of a
cylindrical body with a
spiral ridge called
thread. The threads
surround the cylinder
from tip to the head.

43. Examples of Screws

44. Examples of Screws

45. Lever
It is a straight
rigid bar that is
free to turn about
a fixed point.

49. (Fixed Point)
(point where Force is Applied)
(point where Object is placed)

52. First Class Lever

53. First Class Lever

57. Second Class Lever

60. Effort Load

61. Third Class Lever

62. Third Class Lever

63. Third Class Lever

64. Third Class Lever

65. Third Class Lever

66. Wheel and Axle

75. Pulley

78. Kinds of Pulley

79. Fixed Pulley

81. Movable Pulley

82. Movable Pulley

83. Compound Pulley

84. Movable
Pulley