A mechanism is a device designed to transform input forces and movement into a desired set of output forces and movement. Mechanisms generally consist of moving components such as gears and gear trains, belt and chain drives, cam and follower mechanisms, and linkages as well as friction devices such as brakes and clutches, and structural components such as the frame, fasteners, bearings, springs, lubricants and seals, as well as a variety of specialized machine elements

What are you going to learn?:

  1. Introduction to Mechanisms. Definition and classification
  2. Types of Motion
  3. Linear Motion Mechanism. Levers. Pulleys
  4. Rotatory Motion Mechanisms. Friction Drive. Pulleys with belts. Gear Mechanism and cogwheels. Worm Gear. Gear Mechanisms with a chain
  5. Mechanisms that transform motion. Rack and pinion,Nut and bolt, Winch (and crank handle), Crank-link-slider, Crankshaft, Cam and follower, Eccentric cam

Activities that have to be included in the notebook:

  1. Levers: Definition and formula
  2. Example Activites Page 100
  3. Pulleys: Definition and classification
  4. Example Activities Page 101, 102, 103, 104 and 105
  5. Characteristics and application of every mechanism
  6. Revision activities 3, 5, 7, 8, 9, 15, 16, 17 page 112 and 113
  7. Unit summary on page 110

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Introduction to Simple Machines







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Skip the first and the last minute




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Worm Gear




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Screws and Wheel




Rack and Pinion


Crank and Slider


Cam and Follower


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Mechanical Advantage




What's Energy?




What's Work?





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Basic Mechanisms Web Page






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