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प्रश्न
What is the purpose of a machine?
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उत्तर
The purpose of a machine is:
(i) To multiply force
(ii) To obtain a gain or decrease in speed
(iii) To change to direction of application of force in a convenient direction
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संबंधित प्रश्न
Name a machine to multiply force ?
Name a machine to change the point of application of force ?
Mechanical advantage (M.A.), load (L) and effort (E) are related as ______.
State the incorrect statement:
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.
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
Complete the following sentence :
A scissors is a ___________ multiplier.
What is a machine?
