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प्रश्न
Which machine will you use to do the following work? Write their type.
To cut vegetables.
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उत्तर
To cut vegetables, we should use a knife.
Type: Wedge (simple machine)
संबंधित प्रश्न
State whether the following statement is True or False.
A machine performs work by itself.
Derive the relationship between mechanical advantage, velocity ratio and efficiency of a machine.
What is an inclined plane?
Define Velocity Ratio
Give an example of the following use of a machine to obtain gain in force.
(i) Calculate the mechanical advantage of the lever shown in the figure.
(ii) How do you define the mechanical advantage of a machine?
A simple machine enables us to lift a load of 10,000 N by the application of an effort of 500 N. However, when the point of application of the effort moves through 2.5 m, the load gets raised through 10 cm only. What are the values of the:
(i) M.A.
(ii) V.R. and
(iii) Efficiency of the machine?
Classify the following as a lever, a pulley and an inclined plane:
A needle
The ______ in the centre, the ______ on one side and the ______ on the other side make a lever of the first order.
Name some simple machines.
