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Federal (FBISE) · Half book test (board pattern) · Free

9th Class Physics First half Book Paper

60 marks · 3 hours (Section A: 1 hour 20 minutes) · 76 questions. Covers: 5 chapters (1. Physical Quantities and Measurement to 5. Pressure and Deformation in Solids).

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9th Class Physics First half Book Paper

9th Class · Physics · Federal (FBISE)

Name: ____________Roll No: ________Class/Section: ________Date: ________Total marks: 60Time: 3 hours (Section A: 1 hour 20 minutes)

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

  1. The centre of gravity of a regular shaped body is always on its centre of:
    1. Body
    2. Symmetry
    3. Medians
    4. Axis
  2. The device which is used to measure the atmospheric pressure is
    1. monometer
    2. speedo meter
    3. barometer
    4. galvanometer
  3. 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
  4. The repeated to and fro movement between two positions or states of an object.
    1. Oscillation
    2. Rotation
    3. Translation
    4. Geophysics
  5. The slope of a straight line in distance-time graph gives the magnitude of:
    1. Force
    2. Displacement
    3. Speed
    4. Acceleration
  6. In circular motion, the motion of every particle of body is:
    1. Different
    2. Opposite
    3. Same
    4. None of these
  7. The liquid barometer works on the principle of
    1. hydrostatic equilibrium
    2. stable equilibrium
    3. unstable equilibrium
    4. neutral equilibrium
  8. Net force is the:
    1. resultant force
    2. centripetal force
    3. Centrifugal force
    4. All of these
  9. Which type of error is often described as 'bias'?
    1. Random Error
    2. Systematic Error
    3. Measurement Error
    4. Human Error
  10. 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
  11. The torque of a rotating fan is:
    1. Positive
    2. Negative
    3. Zero
    4. Scalar
  12. 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
  13. First law of motion is also known as law of:
    1. Torque
    2. Acceleration
    3. Inertia
    4. None of these
  14. 0.2 mm in units of meters is.
    1. 0.0002 m
    2. 2 × 104 m
    3. Both A & B
    4. None of these
  15. The shortest distance between two points is known as:
    1. Velocity
    2. Displacement
    3. Speed
    4. Distance
  16. 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
  17. F2 =
    1. #VALUE!
    2. #VALUE!
    3. #VALUE!
    4. None of these
  18. Which of the following is the unit of momentum?
    1. Nm
    2. kgms-1
    3. Ns
    4. Both b & c
  19. Which one of the following is a vector quantity?
    1. Displacement
    2. Speed
    3. Volume
    4. Work
  20. If a body is falling under the gravity then its initial velocity will be:
    1. Positive
    2. Negative
    3. Uniform
    4. Zero
  21. Moon completes its revolution around the Earth in:
    1. 30 days
    2. 27.3 daya
    3. 31 days
    4. 365 days
  22. P =
    1. F/A
    2. F × A
    3. A/F
    4. F - A
  23. 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
  24. 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
  25. What is the distance traveled by the car in the four seconds?
    1. 15 m
    2. 25 m
    3. 30 m
    4. 40 m
  26. First condition of equilibrium is represented by:
    1. ΣF = 0
    2. ΣFx = 0
    3. ΣFy = 0
    4. All of above
  27. 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
  28. 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
  29. Which list contains only scalar quantities?
    1. Acceleration, displacement, velocity
    2. Distance, force, speed
    3. Force, length, time
    4. Length, mass, speed
  30. 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
  31. 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
  32. 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
  33. The mass of the body is a measure of its:
    1. Inertia
    2. Weight
    3. Rest
    4. Acceleration
  34. What does precision refer to in measurements?
    1. Closeness to the true value
    2. Consistency of repeated measurements
    3. Measurement range
    4. Measurement average
  35. Slope of distance-time graph is.
    1. Velocity
    2. Acceleration
    3. Speed
    4. Displacement
  36. When the weight of a paratrooper becomes equal to the air resistance, what happens to his motion?
    1. He moves down with constant velocity
    2. He moves down with constant force
    3. He moves down with constant acceleration
    4. None of these
  37. A girl of mass 50 kg wear heels with an area of 2 cm2 in contact with the ground. The pressure she exerts on ground is.
    1. 4 × 10-5 Pa
    2. 245 × 104 Pa
    3. 4 × 10-4 Pa
    4. 4 × 105 Pa
  38. The rate of change of momentum of free falling body is equal to its.
    1. Momentum
    2. Velocity
    3. Weight
    4. Size
  39. The international system of units is abbreviated as:
    1. IS
    2. SI
    3. Both a & b
    4. None of these
  40. A ball is throw straight up, what is the magnitude of acceleration at the top of its path?
    1. Zero
    2. 9.8 m/s2
    3. 4.9 m/s2
    4. 19.6 m/s2
  41. A satellite travels a distance equal to the circumference of a circle.
    1. 2πr
    2. 2π
    3. 3π
    4. 4π
  42. The atmospheric pressure will be smaller at.
    1. Islamabad
    2. Peshawar
    3. Lahore
    4. Murree
  43. An object has a mass of 15 kg. It is pushed horizontally by a force of 40N. The frictional force is 10N. What is the acceleration of the object?
    1. 0.50 m/s²
    2. 1.5 m/s²
    3. 2.0 m/s²
    4. 2.7 m/s²
  44. Amount of a substance in terms of numbers is measured in.
    1. Gram
    2. Kilogram
    3. Newton
    4. Mole
  45. Value of g depends on:
    1. Mass
    2. Speed
    3. Size
    4. Height
  46. The position of the centre of gravity depends upon:
    1. Size of the body
    2. Shape of the body
    3. Weight of the body
    4. Force of the body
  47. Pressure is a:
    1. vector
    2. scalar
    3. derived
    4. Both b & c
  48. Inertia of a body is related to which of the following quantities.
    1. Mass
    2. Force
    3. Weight
    4. Friction
  49. Separation between divisions on the Vernier Scale of the Vernier Calipers is:
    1. 1 cm
    2. 1 mm
    3. 0.9 mm
    4. All
  50. If a body is thrown vertically upward then its final velocity will be:
    1. Positive
    2. Negative
    3. Uniform
    4. Zero
  51. The force which is acting perpendicularly downwards towards the earth is called:
    1. Torque
    2. Weight
    3. Force of gravity
    4. Both B & C
  52. Force acting on unit area is called
    1. Density
    2. Pressure
    3. Force
    4. Volume
  53. At the fairground, the force that balances your weight is.
    1. Gravitational force
    2. Centripetal force
    3. Electrostatic force
    4. Frictional force
  54. 1.53 is rounded off as:
    1. 1.36
    2. 1.4
    3. 1.45
    4. 1.3
  55. The slope of a straight line in speed-time graph gives the magnitude of:
    1. Force
    2. Displacement
    3. Torque
    4. Acceleration
  56. When the sum of all the forces acting on a body is zero or the object is moving with uniform velocity, then it will be in:
    1. Rest
    2. Motion
    3. Equilibrium
    4. None of above
  57. Which will exert greater pressure?
    1. 3 g needle of tip area 1 mm2
    2. 4000 kg elephant of total feet area 0.5 m2
    3. A girl of mass 40 kg wearing high heel shoes of cross-sectional area 0.5 cm2
    4. A loaded ship of mass 2.2 × 107 kg having area 600 m2
  58. Rate of change of momentum is equal to:
    1. Force
    2. Velocity
    3. Acceleration
    4. Impulse
  59. If the zero of the circular scale is above the horizontal line then the zero error is to be:
    1. Added
    2. Subtracted
    3. Multiplied
    4. Divided
  60. Which of following distance time graphs represents increasing speed of a car?
    1. #VALUE!
    2. #VALUE!
    3. #VALUE!
    4. #VALUE!

Q2. Short questions (Attempt all. Each question has an OR choice · 6 × 3 = 18)

  1. State Pascal's Law.

    OR

    Why do ice skates effortlessly slide on ice, while your shoes cause skidding?
  2. Define action force.

    OR

    What are Derived Quantities?
  3. Examine distance-time graph of a motorcyclist (as shown), what does this graph tell us about the speed of motorcyclist? Also plot its velocity-time graph.Question diagram

    OR

    If a liquid has density twice the density of mercury, what will be height of liquid column in barometer?
  4. How many states of equilibrium.

    OR

    Where will your weight be greater, near earth or near moon? What about mass?
  5. Write the name of any five branches of Physcs.

    OR

    Differentiate between distance and displacement.
  6. What is pressure of liquid?

    OR

    Define centrifuge.

Q3. Long questions (Attempt all. Each question has an OR choice · 2 × 6 = 12)

  1. Define and explain the three state of equilibrium.

    OR

    State the limitations of Newton's laws of motion.
  2. Write the application of Hooke's Law.

    OR

    Explain distance-time graph.