physics class 9th

7/30/2019 Physics Class 9th

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1. The branch of Physics which deals with the study of properties of matter and

energy along with teir mutual interaction PHYSICS

2. He wrote about shining of moon and its phases ALBERUNI

3. He wrote many scientific papers on nature and the propagation of light IBN-UL-

HAITHEM

4. He was awarded Nobel Prize in 1979 DR. SALAM

5. YAQOOB KUNDI was born in 3RD CENTURY HIJRA

6. IBN-UL-HAITHAM was born in 965 A.D

7. The value of P was calculated by IBN-UL-HAITHEM

8. ALBERUNI was born in 965 A.D

9. After the successful verification of an assumption and with the help of carefulexperimentation becomes THEORY

10. An organized process which is used to test the truth of the hypothesis is called

EXPERIMENT

11. The branch of Physics which deals with the isolated nuclei of the atoms

NUCLEAR PHYSICS

12. It is a specific method used for the search of the truth SCIENTIFIC METHOD

13. It is an organize process which is used to test the truth of the hypothesis

EXPERIMENT

14. He combined the weak nuclear force and electromagnetic force DR. ABDUS

SALAM

15. He learnt mathematics and astronomy ALBERUNI

16. The laws of motion and gravitation were stated by NEWTON

17. The branch of physics which deals with various aspects of sound energy and

sound waves is called SOUND

18. The pinhole camera was invented by IBN-UL-HAITHEM

19. On the basis of data collected through observation on experimentation, we can

develop HYPOTHESIS

20. He was a big philosopher and scientist YAQUB KUNDI


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21. The internal structure of earth is studied under a special branch of Physics

which is called GEOPHYSICS

22. The longitude and latitude of the earth was determined by ALBERUNI

21. The machine which solved problems of mathematics and physics with amazing

speed COMPUTER.

22. It deals with the Physical aspects of visible light is called LIGHT

23. The study of specific properties of matter in solid form is called SOLID STATE

PHYSICS

24. Escape velocity 1.1 104 m/s

25. Meter UNIT OF LENGTH

26. Distance SCALAR QUANTITTY

27. Average Velocity DISPLACEMENT / TIME

28. Motion of swing vibratory motion

29. Walk of a person 6 Km/h

30. Motion of Gas molecules RANDOM MOTION

31. Origin of the graph POINT OF INTERSECTION OF X-AXIS AND Y-AXIS

32. Motion under gravity PISA TOWER

33. 0.9 MM OF Vernier Caliper DISTANCE BETWEEN TWO VERNIER DIVISION

34. Milliliter UNIT OF VOLUME

35. Standard quantity UNIT

36. Negative acceleration MOTION AGAINST THE GRAVITY

37. Physics balance MASSS MEASUREMENT

38. Unit of mass KILOGRAM

39. Type of error 03

40. Rate of change of velocity ACCELERATION

41. Jet Plane 3.0 102 m/s

42. Distance between two threads of a screw PITCH


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43. Least Count of meter rod 01mm

44. Km/h UNIT OF SPEED

45. Study of motion under the action of force DYNAMICS

46. Shortest directed distance between two point DISPLACEMENT

47. Nano second 10-9

48. Variable velocity UNIFORM CIRCULAR MOTION

49. That characteristic of a body due to which its resists against any change in its

state of rest or of uniform motion LAW OF INERTIA

50. The force with which earth attracts a body towards its center WEIGHT

51. Fastest bird swift 160 Km/h

52. Co-efficient of friction NO UNIT

53. When a force acts upon a body an acceleration is produced in the direction of

force and the magnitude of acceleration is directly proportional to the force and

inversely proportional to the mass of the body NEWTONS SECOND LAW

54. The force that produces resistance against relative motion between two

surfaces is FRICTION

55. Equations of motion UNIFORM ACCELERATION

56. Acceleration Km h-2

57. Newton Kg ms-2

58. Second Law of Motion ma

59. Velocity Km/h

60. Momentum mv

61. Galileo GRAVITATIONAL ACCELERATION

62. Every body continues in its state of rest or of uniform motion in a straight lineunless it is compelled to change that state by an external source impressed upon it

NEWTONS FIRST LAW

63. That agent which changes or tends to change the state of rest or of uniform

motion of a body FORCE


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64. Action and reaction are equal in magnitude but opposite in direction NEWTONS

THIRD LAW

65. Kinetic friction k Fn

66. Motion about a fixed point ROTATION OF EARTH

67. Weight mg

68. Average acceleration CHANGE IN VELOCITY

69. The force acting along a string TENSION

70. When two or more bodies collide with one another the total momentum of the

system remains the same provided no external force acts upon them LAW OF

CONSERVATION OF MOMENTUM

71. The magnitude of acceleration produced when a force acts on it MASS

72. Momentum Kg ms-1

73. Static friction s Fn

74. When one body moves vertically downward and the other upward then the

formula of tension in the string will be 2m1m2g/(m1+m2)

75. When one body moves vertically downward and the other moves horizontally

then the formula of acceleration will be m1g/(m1+m2)

76. Invention of a wheel ROLLING FRICTION

77. That force which produces an acceleration of one meter pert second per second

in a body of one kilogram mass is ONE NEWTON

78. If we increase the force applied on a body it moves faster which means MORE

ACCELERATION IS PRODUCED

79. sin 300 0.5

80. Mass SCALAR QUANTITY

81. Perpendicular / Hypotenuse sin

82. Trigonometric ratios RIGHT ANGLE TRIANGLE

83. Acceleration VECTOR QUANTITY

84. Density SCALAR

85. Bold letters VECTORS


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86. opposite direction NEGATIVE VECTOR

87. Vector FORCE

88. Cos 90 0

89. Torque VECTOR

90. Tangent Perpendicular / Base

91. Pressure FORCE PER UNIT AREA

92. Cosine Base / Hypotenuse

93. Vector QUANTITY WITH DIRECTION AND MAGNITUDE

94. Head to tail rule VECTOR

95. Trigonometric ratios SCIENTIFIC CALCULATORS

96. Fx X-COMPONENT

97. Sound SCALAR

98. Addition of two equal and opposite vector ZERO MAGNITUDE

99. Egyptian pyramids INCLINED PLANE

100. Rotation of the particle FIXED CIRCLE

101. Rotation of wheel TORQUE

102. Change direction of force MACHINE

103. gh GM (R+h)2

104. Plumb line CENTRE OF GRAVITY

105. Mechanical Advantage LOAD EFFORT

106. Torque Fr

107. Artificial Satellite TELECOMMUNICATION

108. Load L

109. Centre of gravity of cylinder CENTRAL POINT OF AXIS

110. Motion of blades of electric fan CIRCULAR MOTION

111. Mass of earth 61024


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112. MA of inclined plane 1 / sin

113. L h OUTPUT

114. Efficiency OUTPUT / INPUT

115. Energy due to motion KINETIC ENERGY

116. Weight mg

117. Volume of earth 4/3 PiR3

118. Geostationary Satellites GLOBAL SATELLITES

119. Opposite direction of forces UNLIKE PARALLEL FORCES

120. Two parts SCREW JACK

121. Nano 10

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122. State of paratrooper EQUILIBRIUM

123. Universal law of Gravitation NEWTON

124. Wheel type disc PULLEY

125. Force NEWTON

126. Cream Separator CENTRIFUGE

127. Mega 106

129. Crane PULLEY

physics class 9th

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