Please wait...

NDA - Work Energy & power Test 1417
Menu grid icon
Result Result point icon
NDA - Work Energy & power Test 1417
  • Goals icon

    /

    Score
  • Trophy icon

    -

    Rank
White alarm icon Time Taken: -
Result frame illustration
  • Question 1/5
    1 / -0.33
    Which of the following is not a unit of power?
    Solutions

    Wh is a unit of energy. 1Wh is the amount of energy consumed in 1 hour when work in done at the rate of 1W.

    kW is a unit of power. 1kW = 103 W.

    1 hp (horsepower) is a unit of power. 1 hp = 746 W

    J/s is a unit of power. 1 J/s = 1 W.

  • Question 2/5
    1 / -0.33
    A force  N is applied over a particle which displaces it from its origin to the point m then the work done on the particle is :
    Solutions

    The work done on th particle,

  • Question 3/5
    1 / -0.33
    The potential energy of a system increases if work is done
    Solutions

    The potential energy of a system increase if work is done by the system against a conservative force. Potential energy is related to only conservative forces.
    A conservative force is a force with the property that the work is done in moving a particle between two points is independent of the taken path.

  • Question 4/5
    1 / -0.33
    A light and a heavy body have equal momentum. Which one has greater K.E?
    Solutions

    Kinetic Energy is given by, K.E. =

    Momentum, p = mv or v = p/m

    K.E. =

    P is same for both the body Hence

    Hence lighter body has more K.E. Hence, option A is correct.

  • Question 5/5
    1 / -0.33
    The total work done on a particle is equal to the change in its kinetic energy
    Solutions

    According to the work-energy theorem, the total work done on a particle is equal to the change in kinetic energy of the particle. Hence, option A is correct

Close button icon
User Profile
-

Correct (-)

Wrong (-)

Skipped (-)

  • 1
  • 2
  • 3
  • 4
  • 5
Mockers logo Get latest Exam Updates
& Study Material Alerts!
No, Thanks
Arrow pointer icon
Click on Allow to receive notifications
Notification bell icon ×
Open Now