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प्रश्न
The ______ in the centre, the ______ on one side and the ______ on the other side make a lever of the third order.
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उत्तर
The effort in the centre, the load on one side and the fulcrum on the other side make a lever of the third order.
संबंधित प्रश्न
Give a reason for the following.
Machines are able to make our work convenient.
Why is a machine not 100% efficient?
show a nut cracker In the diagram, mark the position of the fulcrum F and the line of action of load L and effort E .
Write the relation between mechanical advantage, velocity ratio and efficiency.
Define mechanical advantage (M.A.) of the machine.
How does a machine work?
(i) Calculate the mechanical advantage of the lever shown in the figure.
(ii) How do you define the mechanical advantage of a machine?
______ help us to make work easier.
The idea of a simple machine originated with the Greek philosopher Archimedes.
Name a machine for each of the following uses:
- to multiply the force,
- to change the point of application of force,
- to change the direction of force,
- to obtain the gain in speed.
