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Machines — Physics STD 10 — Question

ICSE BoardEnglish MediumSTD 10PhysicsMachines1 Mark
MCQ
What is true for an ideal machine regarding energy?
  • ✓
    Output energy = Input energy
  • B
    Output energy > Input energy
  • C
    Output energy < Input energy
  • D
    Work output > Work input
✓

Answer

Correct option: A.
Output energy = Input energy
(a)
Output energy = Input energy
Explanation:
In an ideal machine, the output energy equals the input energy, meaning there are no losses due to friction, heat, or other inefficiencies. This demonstrates the conservation of energy principle.

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