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प्रश्न
The ______ in the centre, the ______ on one side and the ______ on the other side make a lever of the first order.
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उत्तर
The fulcrum in the centre, the load on one side and the effort on the other side make a lever of the first order.
संबंधित प्रश्न
Can a machine have an efficiency of 100%? Give a reason to support your answer.
A machine is 75% efficient’. What do you understand by this statement?
Answer the following in short.
Mention any two methods by which we can take care of machines.
Give an example of the following uses of a machine:
to obtain gain in speed
Define Efficiency
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:
Nutcrackers
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To remove the lid of a tin.
Name the levers mentioned in the following passage. Identify the fulcrum, load, and effort of each and say which type of lever it is.
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A pair of scissors is a _____ multiplier.
