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SIMPLE MACHINES

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  • If builders are high up but need material from the ground floor, which simple machine could they use?
    Pulley
  • Which simple machine is found in a bike?
    Wheel-and-axle
  • What is a pulley made of?
    Wheel-and-axle and rope
  • Which simple machine allows us to LIFT objects?
    Lever
  • Give an example of work
    E.g.: Pushing a stroller around the mall
  • What is work?
    When we apply force (a pull or push) to MOVE an object
  • On a lever, when we want to lift a load up, what do we do to the other side?
    Push down
  • Give 5 examples of levers.
    Fork/See-saw/Hammer/Arms
  • Which simple machine is found in a ceiling fan?
    Wheel-and-axle
  • What is a force?
    A pull or push
  • At the supermarket, why do we choose to push a trolley than carry a cart?
    A trolley has a wheel-and-axle so we put in less effort to carry our shopping
  • Which simple machine does an elevator use?
    Pulley
  • What is a simple machine?
    An object that has few or no moving parts and can make work easier
  • Show us how you can apply a force
    Pulling or pushing an object
  • What does a lever balance on?
    Fulcrum
  • Which simple machine would I use instead of stairs to move a wheelchair up into the mall?
    Ramp (Inclined plane)
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