Work And Energy Period 5

28 Questions | Total Attempts: 42

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Work And Energy Quizzes & Trivia

Multiple Choice and Fill in questions


Questions and Answers
  • 1. 
    A boy pushes on a parked car with a force of 200 N. The car does not move.  How much work does the boy do on the car?
    • A. 

      0 N

    • B. 

      200 N

    • C. 

      Can't be determined

    • D. 

      200 J

  • 2. 
    What are the units of work?
    • A. 

      N-m

    • B. 

      J

    • C. 

      All of these answers

    • D. 

      Kg-m2/s2

  • 3. 
    Which of the following processes requires the most work?
    • A. 

      A 10 kg ball is rolled across the floor at a constant speed for 10 m

    • B. 

      A person holds a 1kg weight still with outstretched arms

    • C. 

      A person lifts a 1 kg weight 1 m off the floor

    • D. 

      A 10 kg weight rests on a table

  • 4. 
    What are the units of power
    • A. 

      Watts

    • B. 

      Joules per second

    • C. 

      Horsepower

    • D. 

      All of these choices

  • 5. 
    Which of the following is NOT a simple machine
    • A. 

      A lever

    • B. 

      A pair of scissors

    • C. 

      A wheel and axle

    • D. 

      A screw

  • 6. 
    Which of the following is not in the inclined plane family
    • A. 

      A wedge

    • B. 

      A ramp

    • C. 

      A screw

    • D. 

      A wheel and axle

  • 7. 
    Which of the following is a compound machine?
    • A. 

      A wheel and axle

    • B. 

      A pair pf pliers

    • C. 

      A pulley

    • D. 

      A ramp

  • 8. 
    Which of the following statements about work and energy is NOT true?
    • A. 

      When work is done, energy is transferred or transformed

    • B. 

      Energy may be defined as the ability to do work

    • C. 

      Work and energy are always equal

    • D. 

      Work and energy have the same units

  • 9. 
    Gravitation potential energy depends on the.....
    • A. 

      Height of the object

    • B. 

      Acceleration due to gravity

    • C. 

      The mass of the object

    • D. 

      All of these choices

  • 10. 
    The kind of energy associated with the atomic bomb is.....
    • A. 

      Chemical energy

    • B. 

      Light energy

    • C. 

      Kinetic energy

    • D. 

      Mechanical energy

  • 11. 
    The primary source of the sun's energy is....
    • A. 

      Chemical energy

    • B. 

      Nuclear fusion

    • C. 

      Nuclear fission

    • D. 

      Potential energy

  • 12. 
    A pendulum is swinging back and forth and has a kinetic energy of 400 J at a particular point in it's path.  Which of the following statements is not true?
    • A. 

      Both kinetic and potential energy are decreasing

    • B. 

      The minimum kinetic energy is zero

    • C. 

      The potential energy increases when the kinetic energy decreases

    • D. 

      When the potential energy is zero, the kinetic energy will be 400 J greater

  • 13. 
    The law of conservation of energy states that.......
    • A. 

      Energy can not change form

    • B. 

      It is impossible to make a perpetual motion machine

    • C. 

      The energy of a system can disappear

    • D. 

      Energy can be neither created or destroyed

  • 14. 
    _____________________ is a quantity that measures the effects of a force acting over a distance
  • 15. 
    ______________________ is a quantity that measures the rate at which work is done
  • 16. 
    _________________________ is a quantity that measures how much a machine multiplies force or distance
  • 17. 
    Power is calculated by dividing work by _______________________
  • 18. 
    Horsepower is the common unit of power in rating engines.   However, the official SI unit of power is the _________________
  • 19. 
    A __________________________ is defined as a machine made up of more than one simple machine
  • 20. 
    A(n) ____________________ is an inclined plane wrapped around a cylinder
  • 21. 
    _______________________ can be defined as the ability to do work
  • 22. 
    ___________________ is the stored energy resulting from the relative positions of objects in a system
  • 23. 
    _____________________ is the energy of a moving object due to its motion
  • 24. 
    The sum of all the kinetic and potential energy of a large scale objects in a system is called ______________________
  • 25. 
    Energy that lies at the level of atoms and does not effect motion on a large scale is sometimes called ________________ energy