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प्रश्न
What is the principle of an ideal machine?
उत्तर
An ideal machine takes energy in one form and converts into another form without any energy losses. The work output is equal to the work input.
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संबंधित प्रश्न
Name a machine to multiply force ?
Mechanical advantage (M.A.), load (L) and effort (E) are related as ______.
The diagram below shows a claw hammer used to remove a nail :
(i) To which class of lever does it belong ?
(ii) Give one more example of the same class of lever mentioned by you in (i) for which the mechanical advantage is greater than one.
Give an example for each of the following uses of a machine:
to obtain gain in force,
Work is the application of a ....... through a distance.
Shows a lemon crusher.
- In the diagram, mark the position of the fulcrum F and the line of action of load L and effort E.
- Name the class of lever
Complete the following sentence :
Mechanical advantage = ___________ × velocity ratio
What is a machine?
Name a machine which can be used to multiply force and change the direction of force applied.
Mention the advantages of using a machine.
