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प्रश्न
Work is the application of a ....... through a distance.
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उत्तर
Force
APPEARS IN
संबंधित प्रश्न
A scissor is a _________ multiplier
State four ways in which machines are useful to us.
Name a machine to multiply force ?
‘The force needed to push a load up an inclined plane is less than the force needed to lift it directly’ Give a reason.
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.
Stat the principle of an ideal machine.
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 :
A scissors is a ___________ multiplier.
Under what condition will a set of gears produce a gain in speed
Mention the advantages of using a machine.
