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प्रश्न
Give one example of a class I lever in a case where the mechanical advantage is equal to 1?
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उत्तर
equal to 1: Seesaw
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संबंधित प्रश्न
Describe three orders of levers giving an example of each. Draw neat diagrams showing the positions of fulcrum, load, and effort in each kind of lever.
Give one example of a class I lever in a case where the mechanical advantage is less than 1?
Name the class to which the following levers belong:
a pair of pliers
Name the class to which the following lever belong:
a crowbar
State three differences between the three classes of levers.
Answer the following.
State the principle of levers.
Name the three classes of levers and state how are they distinguished. Give two examples of each class.
Explain why scissors for cutting cloth may have blades longer than the handles, but shears for cutting metals have short blades and long handles.
Explain why the mechanical advantage of the class III type of lever is always less than 1.
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).
