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प्रश्न
What do you mean by the mechanical advantage of a lever?
उत्तर
The mechanical advantage of a lever is equal to the ratio of the effort arm to the load arm. This is also called the principle of a lever.
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संबंधित प्रश्न
State whether the following statement is True or False.
All levers are force multipliers.
Fill in the blank:
In class II levers, the load is in between fulcrum and .........
Which class of lever has the mechanical advantage always more than 1? Give an example.
Name the class to which the following lever belong:
a nutcracker
Answer the following.
Name the simplest of all types of machines.
Answer the following in a word or two or in a sentence.
Given an example of a Class I lever.
Answer the following in a word or two or in a sentence.
Which type of machine is used to squeeze a lemon?
Answer the following in a word or two or in a sentence.
Give one example of a machine used to multiply speed.
Explain why scissors for cutting cloth may have blades longer than the handles, but shears for cutting metals have short blades and long handles.
Class III levers have mechanical advantage less than one. Why are they then used?
