Intermediate Physics Part 1

  1. [PPSC 2017] Work done to stop the motion of car is equivalent to:?
    Thermal Energy
    K.E.
    P.E.
    None of these
  2. [PPSC 2017] Work done in circular motion after complete cycle? Radius is 5m with vehicle having speed of 5m/s.?
    5J
    25J
    50J
    None of these
  3. [PPSC 2017] Zeroth law is also known as:?
    Law of engines
    Law of refrigerator
    Law of thermal equilibrium
    None of these
  4. [PPSC 2017] Electromagnetic waves have:?
    Positive charge
    Negative charge
    both (a) and (b)
    None of these
  5. [PPSC 2017] Magnitude of 5N and 7N forces can give the resultant of:?
    1N
    2N
    35 N
    None of these
  6. [PPSC 2017] Change in momentum is independent of?
    Velocity
    acceleration
    time
    None of these
  7. [PPSC 2017] Significant Figures in 0.005307 are?
    six
    four
    three
    None of these
  8. [PPSC 2017] Tangential acceleration of a rotating body is equal to the product of distance from center and .. ??
    angular acceleration
    square of Tangential velocity
    angular velocity
    None of these
  9. [PPSC 2017] The value of ‘g’ at the center of the Earth is??
    Infinity
    9.8 m/s^2
    zero
    None of these
  10. [PPSC 2017] What is the vector force due to a potential energy U = 1/2kx^2?
    kx
    -kx
    1/2 kx
    None of these

Physics Quiz 0\2-April-2023

  1. Dyne is to force, as Kyser is to:?
    Viscosity
    Wave number
    gravitational acceleration
    None of these
  2. Dimensionless quantity out of the following is:?
    Angular velocity
    Angular Magnification
    Angular frequency
    None of these
  3. Dimension of Young’s modulus is same as that of?
    Stress
    Modulus of elasticity
    Strain/Stress
    both (a) and (b)
    None of these
  4. A semi-circle has _ radians while sphere has _ steradians respectively.?
    π, 2π
    π, 4π
    2π, 4π
    4π, 2π
  5. The solid angle subtended at the center of sphere is 3 Sr. by an area of 300 cm^2. What is the radius of sphere??
    10 cm
    20 cm
    0.01 cm
    None of these
  6. An experiment is performed to determine value of ‘g’ repeated for five times: 9.77, 9.81, 9.89, 9.79, 9.86 (in units of m/s^2). The correct statement about this experiment is?
    Precise but not accurate
    Precise as well accurate
    Accurate but not precise
    None of these
  7. Mass of an object has 4% uncertainty. The momentum supplied is 10% uncertain. Total % uncertainty in “K.E.” is?
    5%
    24%
    25 %
    28%
  8. The time that light takes for one astronomical unit is approximately:?
    1.3 sec
    1 min
    8 mins
    365.25 days
  9. Dimension analysis does not give us information about?
    whether a physical quantity is a scalar or vector.
    the shape of the object
    the dimensional constant
    Both (A) and (C)
    All of these
  10. [PPSC 2022] A free falling body having mass 10 kg moving with 8 m/s hits ground and rebounds with 6 m/s. Find magnitude of the change in momentum??
    20 Ns
    140 Ns
    70 Ns
    None of these
Oplus_0

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