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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.
Select the correct alternative:
For an ideal machine, the efficiency is
Give a reason for the following.
Machines are able to make our work convenient.
Write an expression for the mechanical advantage of an inclined plane in terms of its length I and vertical height h.
Give an example of the following use of a machine to obtain gain in force.
Give an example of the following use of a machine to change the direction of force.
Classify the following as a lever, a pulley and an inclined plane:
A needle
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 third order.
Simple machines makes work easier by trading ______ for force.
