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Levers
Levers - A simple crowbar can be used to lift a heavy rock with a small effort. The crowbar is an example of a lever. The use of levers was known to the ancient Greeks, and it is reported that Archimedes once remarked "Give me a lever long enough an..
Simple Machines
Simple Machines - In all the above examples, a machine either multiplies or reduces the effect of the force that is applied. A bicycle is a machine which is used to gain speed. We gain speed by exerting additional force. When we try to ride a bicycle up a ste..
Levers
A simple crowbar can be used to lift a heavy rock with a small effort. The crowbar is an example of a lever..
Levers of first order
The distance AF is called the effort arm and the distance BF is called the load arm. If the lever is in equilibrium, then by applying the principle of moments about the fulcrum, we get Clockwise moment = Anticlockwise moment Effort x Effort arm = Load x Load arm The ratio of the effort..
The distance AF is called the effort arm and the distance BF is called the load arm. If the lever is in equilibrium, then by applying the principle of moments about the fulcrum, we get Clockwise moment = Anticlockwise moment Effort x Effort arm = Load x Load arm The ratio of the effort..Classes levers Animation
Force Work Power Energy and Machines..
Force Work Power Energy and Machines..Levers of the 1st Order [Class I Levers]
In this type of lever the effort and the resistance (load) are situated on either side of the fulcrum. Let us consider the lever AB which is used to overcome a load L at B by applying the effort E at A. The fulcrum of the lever is at F as shown in the figure belo..
In this type of lever the effort and the resistance (load) are situated on either side of the fulcrum. Let us consider the lever AB which is used to overcome a load L at B by applying the effort E at A. The fulcrum of the lever is at F as shown in the figure belo..Levers of the 3rd Order [Class III Levers]
Levers of the 3 rd Order [Class III Levers] - In class III levers effort is situated between the load and the fulcrum. (shown in the figure belo..
Levers of the 3 rd Order [Class III Levers] - In class III levers effort is situated between the load and the fulcrum. (shown in the figure belo..Levers of the 2nd Order [Class II Levers]
Levers of the 2 nd Order [Class II Levers] - In these type of levers the load is situated between fulcrum and effort.(shown in the figure belo..
Levers of the 2 nd Order [Class II Levers] - In these type of levers the load is situated between fulcrum and effort.(shown in the figure belo..Heart Lung Machine
Before surgeons can perform open-heart surgery or heart transplants or even to correct a simple heart defect, they have to be able to open up the heart and expose the chambers. To enable this, circulation and respiration are maintained by the heart - lung machine. The func..
Heart Lung Machine
Before surgeons can perform open-heart surgery or heart transplants or even to correct a simple heart defect, they have to be able to open up the heart and expose the chambers. To enable this, circulation and respiration are maintained by the heart - lung machine. The function o..
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