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CISCE(English Medium) ICSE Class 10
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Syllabus

Give two reasons as to why the efficiency of a single movable pulley system is always less than 100%.

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Question

Give two reasons as to why the efficiency of a single movable pulley system is always less than 100%.

Very Short Answer
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Solution

  1. Some effort is used to overcome friction in the pulley system.
  2. Some effort is used to lift the weight of the movable pulley itself.
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Q 28. (b)
Chapter 1: Force, Work, Energy and Power - Frequently Asked Questions in Board Examination [Page 79]

APPEARS IN

Frank Physics Part 2 [English] Class 10 ICSE
Chapter 1 Force, Work, Energy and Power
Frequently Asked Questions in Board Examination | Q 28. (b) | Page 79
Goyal Brothers Prakashan A New Approach to ICSE Physics [English] Class 10
Chapter 3 Machines
EXERCISE-2 | Q 1. (a) | Page 57
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