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Question
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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Solution
The effort in the centre, the load on one side and the fulcrum on the other side make a lever of the third order.
RELATED QUESTIONS
State if the following statement is true or false. Correct the statement if it is false.
Work done by a machine is always more than the work done on a machine.
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
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:
The wheel of a flagpole
Classify the following as a lever, a pulley and an inclined plane:
A crane
What is meant by simple machines?
What is a lever?
______ help us to make work easier.
The idea of a simple machine originated with the Greek philosopher Archimedes.
