O Level Physics Practice Test 10

Efficiency: O Level Physics MCQ Questions PDF - 10

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The MCQs: In a typical power station, amid a series of energy transfers and conversions, about 70% of the energy input gets wasted in the form of thermal energy, the efficiency of such a power station is about PDF, "Efficiency: O Level Physics" App (Android & iOS) Free with 0.4, 0.3, 0.7, and 1 choices for ACT subject tests. Practice energy, work and power questions and answers, Google eBook to download free sample for online bachelor degree programs.

Physics MCQ: Efficiency: O Level Physics Quiz PDF Download - 10

MCQ: In a typical power station, amid a series of energy transfers and conversions, about 70% of the energy input gets wasted in the form of thermal energy, the efficiency of such a power station is about

A) 0.3

B) 0.4

C) 0.7

D) 1

MCQ: Mass of oil is 11040 kg and the volume is 12 m³, its density would be

A) 92 kg m^-3

B) 920 kg m^-3

C) 9.2 kg m^-3

D) 1.08 × 10^-3

MCQ: When the state is being changed from gas to liquid through the process of condensation, the temperature

A) increases

B) decreases

C) remains constant

D) may increase or decrease

MCQ: Sound passes from one place to another in the form of

A) rays

B) waves

C) energy

D) light

MCQ: If a cup of tea at 50 °C is allowed to cool to room temperature, heat released would be (assume room temperature to be equal to 25 °C and heat capacity of the cup and tea to be = 5.0 kJ ⁄ K)

A) 25 kJ

B) 50 kJ

C) 125 kJ

D) 250 kJ

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