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प्रश्न
Name a machine which can be used to multiply force and change the direction of force applied.
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उत्तर
Nutcracker, Hand Pump, Pulley System.
संबंधित प्रश्न
Draw a diagram to show how a single pulley can be used so as to have its ideal M.A= 2.
State four ways in which machines are useful to us.
Name a machine to change the point of application of force ?
Mechanical advantage (M.A.), load (L) and effort (E) are related as ______.
‘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.
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 :
A scissors is a ___________ multiplier.
