IGCSE O Level Physics MCQ App | Efficiency: O Level Physics e-Book PDF Download

IGCSE O Level Physics MCQs (O Level) From Textbook

IGCSE O Level Physics MCQs – Mock Test 110

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Free "IGCSE O Level Physics" App [Free] Android & iOS with MCQ: A machine uses total energy of 5000 J and within the process one-fourth of the energy is lost to the surroundings. efficiency of the machine is; with answers: 50%, 25%, 90%, and 75% to join virtual lectures. Practice Energy, Work and Power Questions and Answers, Google Book to download free chapter to support physics apps.

Efficiency: O Level Physics MCQs – Mock Test 110 PDF Download

MCQ 546: A machine uses total energy of 5000 J and within the process one-fourth of the energy is lost to the surroundings. The efficiency of the machine is:

  1. 25%
  2. 50%
  3. 75%
  4. 90%

MCQ 547: Objects that don't produce their own light are called:

  1. Luminous objects
  2. Non-luminous objects
  3. Transparent objects
  4. Opaque objects

MCQ 548: Density of gold is 19300 kg m-3 and its volume is 0.48 m³, mass of gold would be:

  1. 9426 kg
  2. 9642 kg
  3. 9264 kg
  4. 9246 kg

MCQ 549: For most of the people, human reaction error is about:

  1. 0.03 s
  2. 0.3 s
  3. 3 s
  4. 30 s

MCQ 550: Hydraulics are:

  1. good example of pressure
  2. bad example of pressure
  3. good example of pressure in liquids
  4. bad example of pressure in liquids

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