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Machines — Physics STD 10 — Question

ICSE BoardEnglish MediumSTD 10PhysicsMachines1 Mark
MCQ
Which of the following is not a force multiplier?
  • A
    A jack used to lift a car
  • ✓
    A single fixed pulley used to lift a bucket of water from a well
  • C
    A bar used to lift a heavy stone
  • D
    A wheelbarrow used to carry a load
✓

Answer

Correct option: B.
A single fixed pulley used to lift a bucket of water from a well
(b)
A single fixed pulley used to lift a bucket of water from a well
Explanation:
A single fixed pulley does not act as a force multiplier but rather changes the direction of the force applied. It allows the force to be applied more conveniently but does not increase the force's magnitude.

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