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प्रश्न
What is meant by simple machines?
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उत्तर
Machines that have only one or two parts are called simple machines. Their structure is easy to understand and use. Examples include the nail cutter, bottle opener, and wheel used to push loads, etc.
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.
The correct relationship between the mechanical advantage (M.A.), the velocity ratio (V.R.) and the efficiency (n) is ______.
What is an ideal machine?
Give an example of the following uses of a machine:
to obtain gain in speed
Give scientific reason for the following:
Passengers in a bus are pushed backward when it starts suddenly.
Define mechanical advantage (M.A.) of the machine.
Classify the following as a lever, a pulley and an inclined plane:
An opener
The ______ in the centre, the ______ on one side and the ______ on the other side make a lever of the first order.
Which machine will you use to do the following work? Write their type.
To hold a papad for roasting it.
Why is this so machines have to be maintained?
