NIE Physics Rotational Dynamics Quiz
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Questions and Answers

What is the formula for angular velocity in rotational dynamics?

  • 𝜔 = 2𝜋𝑛 (correct)
  • 𝜔 = 𝜃/𝑡
  • 𝜔 = r𝑣
  • 𝜔 = 2𝜋T

    • Which one of these represents the principle of parallel axes in mechanics?

  • r = I𝛼
  • 𝐼0 = 𝐼𝑐 + Mh^2 + 𝑚𝑔 (correct)
  • 𝐼 = 𝑀𝑟^2
  • L= 𝐼𝜔

    • In fluid mechanics, what is the formula for pressure inside a soap bubble?

  • p = F/3v
  • p = F/6T (correct)
  • p = F/3T
  • p = F/4T

    • Which equation represents the ideal gas equation in thermodynamics?

    <p>{PV = nRT}</p> Signup and view all the answers

    What is the relation between specific heat at constant pressure and specific heat at constant volume in thermodynamics known as?

    <p>Cp - Cv = R</p> Signup and view all the answers

    How is the kinetic energy of gas molecules per unit mass calculated?

    <p>K.𝜖 per unit mass = 3kBT^2</p> Signup and view all the answers

    What is the work done in an Adiabatic process?

    <p>W = 𝑛𝑅𝑇 log 𝑒 [T2 – T1] 1−𝛾</p> Signup and view all the answers

    What is the formula for the time period of a simple pendulum?

    <p>T = 2𝜋 𝑙 𝑔</p> Signup and view all the answers

    What is the frequency of oscillation for a system with restoring force F = 𝑘𝑥?

    <p>n = k/ω</p> Signup and view all the answers

    Which equation represents the displacement in angular Simple Harmonic Motion (SHM)?

    <p>𝐴 sin 𝜔𝑡 + 𝛼 T</p> Signup and view all the answers

    What is true about the composition of two Simple Harmonic Motions (SHM)?

    <p>T= 2π𝑚/𝑘</p> Signup and view all the answers

    When does the work done in an Isochoric process equal zero?

    <p>When ∆V = 0</p> Signup and view all the answers

    What is the formula to calculate the force on a moving charge in a magnetic field?

    <p>$F = qvB$</p> Signup and view all the answers

    What is the expression for the torque on a current-carrying loop placed in a magnetic field?

    <p>$r = NIABsin\theta$</p> Signup and view all the answers

    How is the electric intensity defined for a sphere?

    <p>$E = \frac{1}{4\pi\epsilon_0} \frac{q}{r^2}$</p> Signup and view all the answers

    What does the Gauss law state?

    <p>$\phi = \oint E \cdot dA = \frac{Q_{enc}}{\epsilon_0}$</p> Signup and view all the answers

    What is the formula for potential energy due to an electric dipole in an external field?

    <p>$U = PE \cos(\phi_2) - PE \cos(\phi_1)$</p> Signup and view all the answers

    What is the formula for calculating the resistance of a wire?

    <p>$R = \frac{\rho L}{A}$</p> Signup and view all the answers

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