Physics: Dynamics and Force Quiz
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Physics: Dynamics and Force Quiz

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Questions and Answers

What is the inherent property with which a body resists any change in its state of motion?

  • Acceleration
  • Force
  • Velocity
  • Inertia (correct)

    • Which branch of physics studies the motion of a body by considering the cause, i.e., force, which produces the motion?

  • Thermodynamics
  • Dynamics (correct)
  • Kinematics
  • Statics

    • According to the law of inertia, what does a body have the inability to change by itself?

  • State of rest
  • Direction of motion
  • State of uniform motion
  • All of the above (correct)

    • According to Newton's first law of motion, when will a body remain at rest or continue to move with uniform velocity?

    <p>When no external force is applied to it</p> Signup and view all the answers

    What is an external cause in the form of push or pull, which produces or tries to produce motion in a body at rest?

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

    What is the product of the mass of a body and its velocity defined as?

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

    What is the simplest 'frame of reference' used to describe and understand the motion of particles?

    <p>Inertial frames</p> Signup and view all the answers

    In which type of frame of reference are 'fictitious' or 'pseudo' forces produced?

    <p>Non-inertial</p> Signup and view all the answers

    Which law states that when an external force is applied to a body of constant mass, the acceleration is directly proportional to the force and inversely proportional to the mass of the body?

    <p>Law 2</p> Signup and view all the answers

    What is defined as the product of force and the small time interval for which it acts?

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

    According to which law is the total momentum of an isolated system of particles conserved?

    <p>Law of Conservation of Momentum</p> Signup and view all the answers

    When are concurrent forces said to be in equilibrium?

    <p>If their resultant force is zero</p> Signup and view all the answers

    What are some simple applications of the law of conservation of linear momentum?

    <p>Recoiling of a gun, flight of rockets, and jet planes</p> Signup and view all the answers

    "A group of forces which are acting at one point are called"

    <p>&quot;Concurrent Forces&quot;</p> Signup and view all the answers

    "For concurrent forces to be in equilibrium, their resultant force must be"

    <p>&quot;Zero&quot;</p> Signup and view all the answers

    "The impulse of a force for a given time is equal to"

    <p>&quot;The total change in momentum of the body during the given time&quot;</p> Signup and view all the answers

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