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PULLEY
PULLEYkind of wheel that turnson an axle
3 Kinds of Pulley
Fixed Pulley- does not travel with theload.- changes the direction of theapplied force.
Example:
A FLAGPOLE IS A FIXED PULLEYBECAUSE ……- in a flagpole, there is a fixed pulley at thetop of the flagpole. The flag which i...
MOVABLE PULLEY- moves along the rope together withthe load- used to multiply the applied force-does not change the directi...
MOVABLE PULLEY
BLOCK AND TACKLEA combination of fixed andmovable pulleys.
BLOCK AND TACKLEADVANTAGES DISADVANTAGESCan lift heavy loads easierthan a single pulleyTakes a longer time toraise a heavy...
Simple machine pulley
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Simple machine pulley

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this is all about pulley and its kinds

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Transcript of "Simple machine pulley"

  1. 1. PULLEY
  2. 2. PULLEYkind of wheel that turnson an axle
  3. 3. 3 Kinds of Pulley
  4. 4. Fixed Pulley- does not travel with theload.- changes the direction of theapplied force.
  5. 5. Example:
  6. 6. A FLAGPOLE IS A FIXED PULLEYBECAUSE ……- in a flagpole, there is a fixed pulley at thetop of the flagpole. The flag which isattached to the other end of the ropemoves up as the other end of the rope ispulled down and if the other end ispulled up the flag goes down.
  7. 7. MOVABLE PULLEY- moves along the rope together withthe load- used to multiply the applied force-does not change the direction of theapplied force
  8. 8. MOVABLE PULLEY
  9. 9. BLOCK AND TACKLEA combination of fixed andmovable pulleys.
  10. 10. BLOCK AND TACKLEADVANTAGES DISADVANTAGESCan lift heavy loads easierthan a single pulleyTakes a longer time toraise a heavy loadGain in force Loss of speed in raising anobject

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