Complex and simple machines

Complex and simple machines

• 1.
  COMPLEX AND SIMPLE MACHINES NaturalScience 4th of Primary
• 2.
  SIMPLE MACHINE  Asimple machine has one or few components Example: lever, hammer, scissors, screw, pulley, ramp
• 3.
  COMPLEX MACHINES  Acomplex machine has a lot of elements Example: bicycle, car, computer, mobile phone, clock
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  SIMPLE OR COMPLEX MACHINES 
• 5.
  SIMPLE MACHINES
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  LEVERS
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  COMPLEX MACHINES
• 8.
  QUESTIONS  What kindof machine is a computer?  What kind of machine is a hammer?  What are the three parts of a lever?  Let’s think in examples of simple machines (Write 5 words)  Let’s think in examples of complex machines (Write 5 words)
• 9.
  ACTIVITIES 1. Classify thesemachines in simple or complex. 2. Write load, fulcrum or effort in this levers lever – car – computer – hammer – pulley – clock – bicycle – ramp – wheel - telephone
• 10.
  JOURNAL  Write anddraw three examples simple and three of complex machines