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Machines vocabulary

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Machines vocabulary

  1. 1. Machines are objects we use to make work easier.
  2. 2. All machines use energy: •from people (screwdriver, wheelbarrow…) •electrical (microwave, washing machine…) •from water (watermills…) •from wind (windmills…)
  3. 3. Uses: • to apply force. •to transport things. •to heat or cool things. •to communicate. •to process information.
  4. 4. SIMPLE MACHINES •They have one part or just a few parts. •They use energy from people to work. The pulley The leverThe inclined plane
  5. 5. The pulley: •We use it to lift and lower heavy objects. •It has got an axle.
  6. 6. The inclined plane: •It is a ramp. •We use it to move heavy things up or down.
  7. 7. The lever: •It is a rigid bar. •It has got a pivot point. •We use it to lift heavy objects.
  8. 8. COMPLEX MACHINES They are made up of many operating parts.
  9. 9. A bike is a complex machine. It has got two pedals, a handle bar, two wheels, teeth, gear and a chain.
  10. 10. Look at these machines. •What are their names? •Are they simple or complex machines? •We use them to… • to apply force. •to transport things. •to heat or cool things. •to communicate. •to process information.

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