Physics Multiple Choice Questions
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Questions and Answers

For a perfectly elastic collision and a perfectly inelastic collision, the values of the coefficient of restitution are respectively:

  • 1, 0 (correct)
  • 1, 1
  • 0, 1
  • 0, 0
  • If the linear momentum is increased by 50%, then the kinetic energy (K.E.) will be increased by:

  • 125%
  • 100% (correct)
  • 25%
  • 50%
  • When the kinetic energy (K.E.) of a body is increased by 300%, the momentum of the body is increased by:

  • 20%
  • 100% (correct)
  • 50%
  • 200%
  • The moment of linear momentum is called:

    <p>Angular momentum</p> Signup and view all the answers

    The angular velocity of the minute hand of a clock in radian/second is:

    <p>$\frac{\pi}{30}$</p> Signup and view all the answers

    When a ball is thrown vertically upwards, which of the following quantities remains constant during its motion?

    <p>Acceleration</p> Signup and view all the answers

    Who was the first to experimentally determine the value of the Universal Gravitational Constant (G)?

    <p>Henry Cavendish</p> Signup and view all the answers

    The weight of an object is due to:

    <p>The force that it exerts on the ground</p> Signup and view all the answers

    At which of the following places, the weight of an object is maximum?

    <p>At poles</p> Signup and view all the answers

    A satellite having the same orbital period as the period of rotation of the Earth about its own axis is known as:

    <p>Geostationary satellite</p> Signup and view all the answers

    The pressure of a fluid varies with depth h as $p = p_0 + pgh$, where p is the fluid density. This expression is associated with:

    <p>Pascal's law</p> Signup and view all the answers

    Consider a hypothetical planet whose mass and radius are both half that of Earth. If g is the acceleration due to gravity on the surface of Earth, the acceleration due to gravity on the planet will be:

    <p>$\frac{g}{4}$</p> Signup and view all the answers

    If two satellites of different masses are revolving in the same orbit, they have the same:

    <p>Both (A) and (C)</p> Signup and view all the answers

    Fundamental laws of physics require:

    <p>Conservation of energy, momentum and charge</p> Signup and view all the answers

    Classical Physics does not include subjects like:

    <p>Elementary particles</p> Signup and view all the answers

    Size of universe is of the order of:

    <p>$10^{26}$ m</p> Signup and view all the answers

    Einstein was awarded Nobel Prize in Physics for:

    <p>Photo electricity</p> Signup and view all the answers

    Who made these remarks: 'time is what a clock reads'?

    <p>Einstein</p> Signup and view all the answers

    Fundamental unit of luminous intensity is:

    <p>Candela</p> Signup and view all the answers

    Weber is derived unit of:

    <p>Magnetic flux</p> Signup and view all the answers

    The prefix femto stands for:

    <p>$10^{-15}$</p> Signup and view all the answers

    Number of basic SI unit is:

    <p>7</p> Signup and view all the answers

    Which of the following is not a fundamental unit?

    <p>Litre</p> Signup and view all the answers

    Light-year is a unit of:

    <p>Distance</p> Signup and view all the answers

    One light year is approximately equal to:

    <p>$10^{16}$ m</p> Signup and view all the answers

    Ampere is the unit of:

    <p>Current electricity</p> Signup and view all the answers

    What is the SI unit of pressure?

    <p>Pascal</p> Signup and view all the answers

    Decibel is the unit of:

    <p>Intensity of sound</p> Signup and view all the answers

    What is the SI unit of electric charge?

    <p>Coulomb</p> Signup and view all the answers

    Study Notes

    Physics Multiple Choice Questions

    • Perfectly Elastic Collision: Coefficient of restitution is 1
    • Perfectly Inelastic Collision: Coefficient of restitution is 0
    • Linear Momentum Increase: A 50% increase in linear momentum results in a 125% increase in kinetic energy
    • Kinetic Energy Increase: A 300% increase in kinetic energy results in a 100% increase in momentum
    • Angular Momentum: The moment of linear momentum is called angular momentum
    • Minute Hand Angular Velocity: The angular velocity of the minute hand of a clock is $\frac{\pi}{1800}$ radian/second
    • Constant Quantity in Vertical Throw: Acceleration remains constant during the motion of a ball thrown vertically upwards
    • Universal Gravitational Constant Determination: Henry Cavendish experimentally determined the value of the Universal Gravitational Constant (G)
    • Weight of an Object: Weight is due to the net force acting on an object
    • Maximum Weight of an Object: An object's weight is maximum at the poles
    • Geostationary Satellite: A satellite with the same orbital period as Earth's rotation is called a geostationary satellite
    • Fluid Pressure and Depth: The pressure of a fluid varies with depth (h) as p = p0 + pgh, where p is the fluid density. This is associated with Pascal's law
    • Hypothetical Planet's Gravity: A planet with half the mass and radius of Earth has an acceleration due to gravity of $\frac{g}{4}$
    • Satellite Orbit: Satellites of different masses revolving in the same orbit have the same speed and time period.

    Fundamental Laws of Physics

    • Conservation Laws: Fundamental laws of physics require conservation of energy, momentum, and charge
    • Classical Physics: Does not include subjects like elementary particles
    • Size of Universe: The size of the universe is on the order of $10^{26}$ m
    • Einstein's Nobel Prize: Albert Einstein was awarded the Nobel Prize in Physics for his work on the photoelectric effect, not relativity or gravitation.
    • Time and Clocks: The famous quote 'time is what a clock reads' is attributed to Albert Einstein

    Units and Measurements

    • Luminous Intensity: The fundamental unit of luminous intensity is the candela
    • Weber: Weber is a unit of magnetic flux
    • Femto Prefix: The prefix femto stands for $10^{-15}$
    • Number of SI Units: There are 7 basic SI units
    • Fundamental Unit: Litre is not a fundamental unit
    • Light-Year: A light-year is a unit of distance
    • One Light Year: One light-year ≈ $10^{16}$ m
    • Ampere: Ampere is the unit of current electricity
    • SI Unit of Pressure: Pascal is the SI unit of pressure
    • Decibel: Decibel is the unit of sound intensity
    • SI Unit of Electric Charge: Coulomb is the SI unit of electric charge

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    Test your knowledge of key physics concepts with this quiz. Explore topics such as collisions, momentum, kinetic energy, and gravitational forces. Perfect for students looking to sharpen their understanding of these fundamental principles.

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