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प्रश्न
Give three examples for leavers of the third order.
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उत्तर
Levers of third order:
(i) Cutting bread with a knife.
(ii) A boy writing on a piece of paper
(iii) Forceps
(iv) A fishing rod.
संबंधित प्रश्न
The diagram below shows a lever in use:
- To which class of levers does it belong?
- Without changing the dimensions of the lever, if the load is shifted towards the fulcrum what happens to the mechanical advantage of the lever?
Draw a diagram of a lever which is always used as a force multiplier. How is the effort arm related to the load arm in such a lever?
Define Lever
Which class of lever found in the human body is being used by a boy when he raises the weight of his body on his toes?
The following belong to which class of lever?
Rowing of a boat
The following belong to which class of lever?
Sugar tongs
The following belong to which class of lever?
Nutcracker
Draw a labelled sketch of a second class lever. Give one example of such a lever.
When we want to use a machine as a force multiplier, which class of lever should we preferably use? Give a simple diagram of such a lever.
The diagram below shows a lever in use.
(i) To which class of lever does it belong?
(ii) If FA = 40 cm, AB = 60 cm, then find the mechanical advantage of the lever.
