Work, Power, and Energy Quiz
9 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

A force F = (2iˆ + 3 ˆj + 2kˆ) N acts on a particle of mass m. The particle starts from point A (1, 2, 1) and moves to point B (3, 4, 3). What is the total work done by the force on the particle?

14 J

A force, F = 2iˆ + 3 ˆj, acts on a particle. The particle starts from point O (0, 0) and moves to point A (2, 4). Find the total work done by force F on the particle.

16 J

Find the work done by the force till 4 m in the given graph.

  • 287.5 J
  • 200 J
  • 50 J (correct)
  • 25 J
  • The relationship between force and position is shown in the figure, and the work done by the force in displacing a body from x = 1 cm to x = 5 cm is

    <p>60 ergs</p> Signup and view all the answers

    A body of mass 6 kg is under a force which causes displacement given by S = $\frac{t^2}{4}$ meters. The work done by the force in 2 seconds is

    <p>3 J</p> Signup and view all the answers

    A body contained to move in y-direction is subjected to a force given by F = -2iˆ + 15 ˆj + 6kˆ N. The work done by this force in moving the body a distance of 10 m along the y-axis is

    <p>150 J</p> Signup and view all the answers

    A force F = 5iˆ + 3 ˆj newton is applied over a point r = 2iˆ - ˆj metres. The work done on the particle is

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

    Due to the force F = 4iˆ + 4 ˆj N, a body is shifted from the origin to the point (5 m, 6 m). The work done by the force in moving the object from x = 0 to x = 8 m is

    <p>10 J</p> Signup and view all the answers

    A 2 kg mass lying on a table is displaced in the horizontal direction through 50 cm. The work done by the normal reaction will be

    <p>0</p> Signup and view all the answers

    Study Notes

    Work, Power, and Energy

    Force and Displacement

    • A force F = (2iˆ + 3 ˆj + 2kˆ) N acts on a particle of mass m, moving it from point A (1, 2, 1) to point B (3, 4, 3).
    • The total work done by the force on the particle is 14 J.

    Force-Displacement Graph

    • The work done by a force on a body can be calculated from a force-displacement graph.
    • The area under the graph represents the work done.

    Work Done by a Force

    • A force F = 2iˆ + 3 ˆj acts on a particle, moving it from point O (0, 0) to point A (2, 4).
    • The total work done by the force on the particle is 16 J.
    • A force F = 5iˆ + 3 ˆj N is applied over a particle, displacing it from its origin to the point r = 2iˆ –1 ˆj metres.
    • The work done on the particle is +7 joules.

    Work and Energy

    • The work done by a force on an object is related to the energy transferred to the object.
    • The work-energy theorem states that the net work done on an object is equal to its change in kinetic energy.

    Force and Position

    • The relationship between force and position can be represented by a graph.
    • The work done by a force in displacing a body from x = 1 cm to x = 5 cm is 30 J.

    One-Dimensional Motion

    • A body moves in one dimension under the influence of a force.
    • The work done by the force on the body can be calculated using the force-position graph.

    Force and Displacement in Two Dimensions

    • A force F = 4iˆ + 4 ˆj N acts on a body, displacing it from the origin to the point (5 m, 6 m).
    • The work done by the force is 44 J.

    Normal Reaction

    • A 2 kg mass lying on a table is displaced in the horizontal direction through 50 cm.
    • The work done by the normal reaction is 0.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Related Documents

    Description

    This quiz covers the concepts of work, power, and energy in physics, including force, displacement, and force-displacement graphs. Test your understanding of the calculations and concepts involved.

    More Like This

    Physics: Work and Energy
    6 questions

    Physics: Work and Energy

    PainlessTechnetium avatar
    PainlessTechnetium
    Physics Chapter on Force, Work, and Energy
    37 questions
    Use Quizgecko on...
    Browser
    Browser