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प्रश्न
Classify the following as a lever, a pulley and an inclined plane:
Nutcrackers
उत्तर
Nutcrackers – A lever
संबंधित प्रश्न
State whether the following statement is True or False.
In an ideal machine, work done on load is equal to the work done by effort.
A machine is 75% efficient’. What do you understand by this statement?
What do you understand by a simple machine?
What is an inclined plane?
State whether the mechanical advantage of an inclined plane is equal to 1, less than 2 or greater than 1?
Write an expression to show the relationship between mechanical advantage, velocity ratio, and efficiency for a simple machine.
Comment on the statement ‘The mechanical advantage of a machine is greater than 1’. Give an example of a lever mechanical advantage is:
(i) greater than 1.
(ii) Equal to 1.
How does a machine work?
A uniform metre scale is kept in equilibrium when supported at the 60 cm mark and a mass M is suspended from the 90 cm mark as shown in the figure. State with reasons, whether the weight of the scale is greater than, less than or equal to the weight of mass M.
Classify the following as a lever, a pulley and an inclined plane:
A knife
