Levers Physical science lab

Physics
Tutor: None Selected Time limit: 1 Day

Describe the differences between the classes of levers in terms of the effort, resistance, effort distance and resistance distance. Include diagrams to illustrate your answer.

May 10th, 2015

3 types of levers

class 1  levers type.jpg 

Fulcrum in the middle: the force is applied on one side of the fulcrum the resistance on the other side, for example,  pair of scissors.

class 2

  The effort is applied on one side of the resistance ,Resistance in the middle,and the fulcrum is located on the other side, for example, a nutcracker, a bottle opener .

class 3

 Third-class levers have the effort placed between the load and the fulcrumThe effort always travels a shorter distance and must be greater than the load.ex-Hammer

CLASS 1 LEVER.gif CLASS 2 LEVER.gif CLASS 3 LEVER.gif 

May 10th, 2015

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