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WORK, POWER AND ENERGY

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  • A stick of dynamite was released when the fuse comes into contact with the chemicals. POTENTIAL ENERGY OR KINETIC ENERGY
    KINETIC ENERGY
  • IF THE SPEED OF AN OBJECT IS DOUBLED, WHAT HAPPENS TO ITS KINETIC ENERGY?
    KE BECOMES QUADRUPLED
  • It is an energy due to the motion.
    KINETIC ENERGY
  • It is the sum of an object’s kinetic energy and potential energy.
    MECHANICAL ENERGY
  • IF YOU INCREASE THE DISTANCE AN OBJECT MOVES, WHAT HAPPENS TO ITS POWER?
    POWER INCREASES
  • IT IS CONSIDERED AS ENERGY AT REST OR STORED ENERGY
    POTENTIAL ENERGY
  • KINETIC ENERGY IS EXPRESSED IN THE EQUATION _______.
    K.E = MASS x VELOCITY SQUARED/2
  • THE EQUATION FOR THE AMOUNT OF POWER OUTPUT IS?
    POWER = WORK/TIME
  • THE EQUATION FOR THE AMOUNT OF WORK IS ____________.
    WORK = FORCE x DISTANCE
  • THE EQUATION FOR POTENTIAL ENERGY IS ____________.
    P.E = MASS x GRAVITY x HEIGHT
  • Is there a work done?
    YES, BECAUSE FORCE IS EXERTED AND DISTANCE TRAVELLED
  • It is done when a force applied and distance travelled by an object is the same direction.
    WORK
  • What is the common unit for work?
    N.m or Joule
  • IS THERE A WORK DONE? ( a boy carrying a book)
    NO WORK DONE
  • DIGESTED FOOD WE EAT provides us with energy for basic metabolism. POTENTIAL E. OR KINETIC E.
    KINETIC ENERGY
  • It is the ability to do work.
    POWER
  • Is there a work done?
    NO WORK DONE
  • IT IS THE CAPACITY TO DO WORK.
    ENERGY
  • A rock sitting at the edge of a cliff. POTENTIAL E. OR KINETIC ENERGY?
    POTENTIAL ENERGY
  • THE EQUATION FOR THE AMOUNT OF POWER OUTPUT IS?
    POWER = WORK/TIME
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