By Michael Wegener

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SIMPLE MACHINES
By Michael Wegener
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Simple Machines Make Life Easy

• Simple machines are machines with very few parts.
  How do they help us? The answer to that question
  is they reduce your effort that you would
  actually need to actually lift the object.
  Ancient people may have started building these
  machines by watching animals, but nobody knows
  the true answer except the individual being (or
  human beings) that built it. Since none of us are
  the originator of these amazing tools (or ones
  similar) why the earliest ancient people built
  them will remain as a mystery to us.

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The lever

• An example of a first class lever is a seesaw. A
  example of a second class lever is a wheelbarrow.
  A example of a third class lever is a baseball
  bat. No matter what class lever you are using you
  have a load, fulcrum, and a effort force. To
  build a wedge you would take a bar, a plank, or a
  pole and put something round under it like a
  wheel or a pebble underneath your pole, bar, or
  plank. You would then take your load and place it
  on one end of your pole, bar, or plank. Once
  finished with those you would push on the end of
  the pole, bar, or plank that doesnt have the
  load. If your load goes flying away you have made
  yourself your own lever.

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The pulley

• They help us people lift heavy things. They
  assist us by putting in work so we put in much in
  much less effort. What is they? They is the
  pulley. With out them there probably wouldnt be
  any 10 story floor buildings! There are three
  different types of pulleys. One of them is the
  fixed pulley. When you pull down your load goes
  up. This works when a wheel is attached to an
  object that cant move. Then a rope is rounded
  around the wheel and the other end of the rope is
  tied around your load. When you pull the rope
  down your load will go up. The fixed pulley will
  not reduce the weight of your load. Another
  pulley is the movable pulley. It is made by
  curving the rope around the bottom half of the
  wheel so when you pull up your load goes up The
  last pulley I am also sure of how to construct.
  Its name is the Fixed and Movable pulley. It is
  built by constructing two wheels to your
  positioned object with one long piece of rope so
  that when you pull down your load goes up. In
  other words it is a fixed pulley combined with a
  movable pulley.

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The Incline Plane

• Inclined planes are flat, slanted surface. Movers
  use inclined planes to move their furniture when
  they move. Inclined planes help us reduce the
  effort to move an object. This helps when pushing
  a 200 pound dish washer up a ramp after putting
  it on wheels would be much easier than picking it
  up and carrying it out of a house and heaving it
  onto the back of a moving truck thats
• trunks floor is 4 feet off the ground.

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The Wheel and Axle

• Wheel and axles are worked by a force acting upon
  the wheel forcing the wheel to turn. When the
  wheel moves the axle moves with the turning wheel
  causing the axle to turn as well as the turning
  wheel. So a few examples of wheel and axles are
  the screwdriver and the Ferris wheel.

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The Wedge

• A wedge is two inclined planes back to back.
  Wedges change downward or forward which slices
  the item in half. A wedge converts motion in one
  direction into a splitting motion that acts as
  right angles to the blade. People may have got
  their idea of the wedge from the woodpecker.

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Screw

• The screw is a relative of the inclined plane.
  All it is a inclined plane twisted spirally
  around. You would not have to turn a screw around
  a lot to turn it into a piece of wood. A screw
  increases your force so that is why it can go
  deep into the wood.

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The End!