9th Class Physics Full Book Paper

Q1. Multiple choice questions (Attempt all · 60 × 0.5 = 30)

1. Central part of atom is called:
   1. proton
   2. electron
   3. nucleus
   4. neutron
2. When studying how air conditioners cool your house, then it is.
   1. Thermodynamic
   2. Electromagnetism
   3. Nuclear Physics
   4. Optics
3. The centre of gravity of a regular shaped body is always on its centre of:
   1. Body
   2. Symmetry
   3. Medians
   4. Axis
4. What is the primary component of natural gas?
   1. Carbon Dioxide
   2. Methane
   3. Ethanol
   4. Nitrogen
5. The device which is used to measure the atmospheric pressure is
   1. monometer
   2. speedo meter
   3. barometer
   4. galvanometer
6. The agency which changes or tends to change the state of rest or of uniform motion of a body:
   1. Weight
   2. Force
   3. Inertia
   4. Momentum
7. The slope of a straight line in distance-time graph gives the magnitude of:
   1. Force
   2. Displacement
   3. Speed
   4. Acceleration
8. When a gas is heated, it may change:
   1. Volume
   2. Pressure
   3. Both a & b
   4. Color
9. The repeated to and fro movement between two positions or states of an object.
   1. Oscillation
   2. Rotation
   3. Translation
   4. Geophysics
10. Earth magnetic field resemble with the field of:
    1. magnet
    2. bar magnet
    3. moon
    4. sun
11. Computational physics combine are:
    1. physics
    2. computer science
    3. mathematics
    4. all of these
12. In circular motion, the motion of every particle of body is:
    1. Different
    2. Opposite
    3. Same
    4. None of these
13. Which fossil fuel is the most abundant globally?
    1. Oil
    2. Natural Gas
    3. Coal
    4. Nuclear
14. The liquid barometer works on the principle of
    1. hydrostatic equilibrium
    2. stable equilibrium
    3. unstable equilibrium
    4. neutral equilibrium
15. Net force is the:
    1. resultant force
    2. centripetal force
    3. Centrifugal force
    4. All of these
16. A car is moving with velocity of 10 m/s. If it has acceleration of 2 m/s2 for 10 seconds. What is final velocity of the car?
    1. 30 m/s
    2. 20 m/s
    3. 10 m/s
    4. 15 m/s
17. Molecules in motion. When temperature is:
    1. Low
    2. High
    3. Constant
    4. None of these
18. Which type of error is often described as 'bias'?
    1. Random Error
    2. Systematic Error
    3. Measurement Error
    4. Human Error
19. The direction of magnetic field can be found:
    1. left hand rule
    2. right hand rule
    3. complete hand
    4. none of these
20. The branch of Physics that deals with the particles such as neutrons and protons.
    1. Solid State Physics
    2. Plasma Physics
    3. Electricity
    4. Nuclear Physics
21. The torque of a rotating fan is:
    1. Positive
    2. Negative
    3. Zero
    4. Scalar
22. What will be magnitude of work if a force of 25N pulse a stone through a distance of 5m in its direction:
    1. 25 J
    2. 50 J
    3. 75 J
    4. 125 J
23. The pressure exerted by a man on the surface of earth will be smaller when he.
    1. Stands on both feet
    2. Sits on the ground
    3. Stands on one leg
    4. Sleeps on the ground
24. First law of motion is also known as law of:
    1. Torque
    2. Acceleration
    3. Inertia
    4. None of these
25. The shortest distance between two points is known as:
    1. Velocity
    2. Displacement
    3. Speed
    4. Distance
26. Ionic state of matter is called:
    1. Gas
    2. Plasma
    3. Liquid
    4. None of these
27. 0.2 mm in units of meters is.
    1. 0.0002 m
    2. 2 × 104 m
    3. Both A & B
    4. None of these
28. Proton consist of charge:
    1. positive
    2. negative
    3. zero
    4. all of these
29. The knowledge gain through observation and experimentation is called:
    1. physics
    2. science
    3. technology
    4. all of these
30. It is more difficult to walk on a slippery surface than on a nonslippery one because of.
    1. Reduced friction
    2. Increased friction
    3. High grip
    4. Lower weight
31. A force is acting on body but causes no displacement. The work down on the body is.
    1. Positive
    2. Negative
    3. Zero
    4. Infinite
32. F2 =
    1. #VALUE!
    2. #VALUE!
    3. #VALUE!
    4. None of these
33. Which of the following is the unit of momentum?
    1. Nm
    2. kgms-1
    3. Ns
    4. Both b & c
34. If a body is falling under the gravity then its initial velocity will be:
    1. Positive
    2. Negative
    3. Uniform
    4. Zero
35. Which material is used in thermometer?
    1. Mercury
    2. Water
    3. Milk
    4. All of these
36. Which one of the following is a vector quantity?
    1. Displacement
    2. Speed
    3. Volume
    4. Work
37. Iron crystals are found in the beaks of:
    1. pigeons
    2. tiger
    3. lion
    4. all of these
38. Which branch of science plays an important role in engineering?
    1. Biology
    2. Chemistry
    3. Physics
    4. Life science
39. Moon completes its revolution around the Earth in:
    1. 30 days
    2. 27.3 daya
    3. 31 days
    4. 365 days
40. 1 hp = __________ W.
    1. 756 W
    2. 716 W
    3. 736 W
    4. 746 W
41. P =
    1. F/A
    2. F × A
    3. A/F
    4. F - A
42. When a hanging carpet is beaten by stick. Dust flies off the carpet. It is mainly due to.
    1. Action force on carpet
    2. Reaction force by carpet
    3. Inertia of dust
    4. Rate of change of momentum of carpet
43. What is the distance traveled by the car in the four seconds?
    1. 15 m
    2. 25 m
    3. 30 m
    4. 40 m
44. Weakest attractive forces are in:
    1. Solid
    2. Liquid
    3. Gases
    4. Plasma
45. If an experiment consistently yields results that are all slightly higher than the true value, what type of error is likely present?
    1. Random Error
    2. Systematic Error
    3. Human Error
    4. Calculation Error
46. Permanent magnetic are used:
    1. MRI
    2. electric motor
    3. electric fan
    4. None of these
47. Which of the following is specific condition of theory?
    1. kinetic molecular theory
    2. theory of general relativity
    3. theory of Newton
    4. Both a & b
48. First condition of equilibrium is represented by:
    1. ΣF = 0
    2. ΣFx = 0
    3. ΣFy = 0
    4. All of above
49. The energy possessed by a body due to its position is called:
    1. kinetic energy
    2. potential energy
    3. chemical energy
    4. muscular energy
50. The ability of a deformed body to return to its original shape and size when the deforming forces are removed is called:
    1. Elasticity
    2. Deforming force
    3. Hook's Law
    4. All of these
51. The value of Gravitational field strength on earth:
    1. g = 9.8 N/kg
    2. g = 8.8 N/kg
    3. g = 10.8 N/kg
    4. g = 7.8 N/kg
52. A girl walks 3 km towards west and 4 km towards south. What is the magnitude of her total distance and displacement respectively?
    1. 7 km, 7 km
    2. 1 km, 7 km
    3. 7 km, 1 km
    4. 7 km, 5 km
53. In internal energy, potential energy of the particle of the substance is:
    1. Attractive force
    2. Repulsive force
    3. Constant force
    4. Net force
54. Which list contains only scalar quantities?
    1. Acceleration, displacement, velocity
    2. Distance, force, speed
    3. Force, length, time
    4. Length, mass, speed
55. Graphically the magnetic field is representative by:
    1. lines
    2. field lines
    3. normal lines
    4. imaginary line
56. A tentative and testable statement is called:
    1. theory
    2. law
    3. hypothesis
    4. computational of physics
57. The line along which a force acts is called:
    1. line of action
    2. resultant force
    3. head to tail rule
    4. All of these
58. 1120 W are equal to:
    1. 1 hp
    2. 2.5 hp
    3. 1.5 hp
    4. 2.7 hp
59. Materials which does not regain its original shape after removal of the load producing deformation are termed as.
    1. Elastic materials
    2. Plastic materials
    3. Rigid materials
    4. Hooke's materials
60. The mass of the body is a measure of its:
    1. Inertia
    2. Weight
    3. Rest
    4. Acceleration