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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.
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
State whether the following statement is True or False.
A machine performs work by itself.
Fill in the blank:
The useful work done by an actual machine is always ............ than the work done on the machine.
Answer the following in short.
Mention any two methods by which we can take care of machines.
Give two examples of inclined plane where it is used to raise a heavy load with less effort ?
Can a simple machine act as a force multiplier and a speed multiplier at the same time?
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.
What is meant by simple machines?
What is a lever? How are the orders of the lever determined?
Simple machines usually exchange a larger force to move a heavy object.
