Physics

9th -

10thgrade

Image

Work and Energy

user

195
plays

14 questions

Show Answers
See Preview
  • 1. Multiple Choice
    30 seconds
    1 pt

    If the force on an object is in the negative direction, the work it does on the object must be

    zero

    positive

    nagative

    The work could be either positive or negative, depending on the direction of the object's motion.

  • 2. Multiple Choice
    30 seconds
    1 pt

    A truck has four times the mass of a car and is moving with twice the speed of the car. If Kt and Kc refer to the kinetic energies of truck and car respectively, it is correct to say that

    Kt = Kc

    Kt = 2Kc

    Kt = 4Kc

    Kt = 16Kc

  • 3. Multiple Choice
    30 seconds
    1 pt

    Which of the following bodies has the largest

    kinetic energy?

    Mass 3M and speed V

    Mass 3M and speed 2V

    Mass 2M and speed 3V

    Mass M and speed 4V

  • Answer choices
    Tags
    Answer choices
    Tags

    Explore all questions with a free account

    Already have an account?