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प्रश्न
Answer the following.
Name the simplest of all types of machines.
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उत्तर
Lever.
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संबंधित प्रश्न
What is a lever?
Draw diagram to illustrate the position of fulcrum, load, and effort, of the following:
a see-saw.
Draw diagram to illustrate the position of fulcrum, load, and effort, of the following:
a beam balance
In a lever, the fulcrum is at one end at a distance of 30 cm from the load and effort is at the other end at a distance of 90 cm from the load. Find :
(a) the length of load arm,
(b) the length of effort arm, and
(c) the mechanical advantage of the lever.
Answer the following.
What is a Class I lever?
Explain why the mechanical advantage of a class II of lever is always more than 1.
Classify the following into levers:
Wheel barrow
Classify the following into levers:
A fishing rod
The diagram below shows a rod lifting a stone.
- Mark position of fulcrum F and draw arrows to show the directions of load L and effort E.
- What class of lever is the rod?
- Give one more example of the same class of lever stated in part (b).
Classify the following into levers:
Sugar tongs
