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प्रश्न
What is a first-order lever?
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उत्तर
When the fulcrum is between the effort and the load,
it is known as the Class I lever.
Example: scissors, pliers, seesaw.
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संबंधित प्रश्न
Name a machine to obtain gain in speed ?
State the principle of a lever?
The lever for which the mechanical advantage is less than 1 has :
A lever of length 9 cm has its load arm 5 cm long and the effort arm is 9 cm long.
- To which class does it belong?
- Draw a diagram of the lever showing the position of fulcrum F and directions of both the load L and effort E.
- What is the mechanical advantage and velocity ratio if the efficiency is 100%?
- What will be the mechanical advantage and velocity ratio if the efficiency becomes 50%?
The following belong to which class of lever?
An oar of a boat
The following belong to which class of lever?
A claw-hammer
The following belong to which class of lever?
A pair of scissors
The following are an example of levers. State the class of lever to which each one belongs giving the relative positions of Load (L), Effort (E), Fulcrum (F):
(i) Scissors (ii) Sugar tongs (iii) Nutcracker (iv) Pliers.
What is a lever?
A lever is used to multiply the force.
