IGCSE O Level Physics MCQs – Mock Test 10

Efficiency: O Level Physics MCQs with Answers PDF Download – Test 10

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Download "Efficiency: O Level Physics MCQ" App (Android & iOS): 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; MCQ with answers: 0.4, 0.3, 1, and 0.7. Practice Energy, Work and Power Questions and Answers, Google Book to download free chapter for physics remote education.

Efficiency: O Level Physics MCQ – Mock Test 10 PDF Download

MCQ 46: 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:

MCQ 47: Mass of oil is 11040 kg and the volume is 12 m³, its density would be:

92 kg m^-3
920 kg m^-3
9.2 kg m^-3
1.08 × 10^-3

MCQ 48: When the state is being changed from gas to liquid through the process of condensation, the temperature:

increases
decreases
remains constant
may increase or decrease

MCQ 49: Sound passes from one place to another in the form of:

rays
waves
energy
light

MCQ 50: 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):

25 kJ
50 kJ
125 kJ
250 kJ

IGCSE O Level Physics MCQ App & eBook – Efficiency: O Level Physics Study Material

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