IGCSE O Level Physics MCQs – Practice Test 16 (Chapter 2)

Energy, Work and Power Notes Questions with Answers PDF Download – Test 16

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Free Energy, Work and Power Notes App Download: An elevator motor is used to lift 1000 N load to a height of 0.25 km. If the total amount of energy input is 1MJ, which of the following pairs of values of energy wasted and efficiency are correct; MCQ with answers: energy wasted = 500 kj, efficiency = 75 %, energy wasted = 750 kj, efficiency = 75 %, energy wasted = 500 kj, efficiency = 25 %, and energy wasted = 750 kj, efficiency = 25 %. Practice Transverse & Longitudinal Waves Quiz Questions, download Kobo e-Book (Free Chapter) to engage remote learning.

Energy, Work & Power Test Questions and Answers PDF Download: MCQ 16

MCQ 76: When pendulum bob is released, potential energy is converted into:

Mechanical Energy
Electrical Energy
Thermal energy
Kinetic energy

MCQ 77: An elevator motor is used to lift 1000 N load to a height of 0.25 km. If the total amount of energy input is 1MJ, which of the following pairs of values of energy wasted and efficiency are correct?

Energy wasted = 750 kJ, Efficiency = 75 %
Energy wasted = 500 kJ, Efficiency = 75 %
Energy wasted = 500 kJ, Efficiency = 25 %
Energy wasted = 750 kJ, Efficiency = 25 %

MCQ 78: When a rubber band is compressed, type of energy possessed by the rubber is:

Potential Energy
Thermal Energy
Kinetic Energy
Sound Energy

MCQ 79: From the physics point of view, work is being done by:

A man carrying a heavy pile of books in a stationary position
A boy rote learning for his physics exam
A girl working on her Math homework
None of them

MCQ 80: A car of mass 1.5 tonnes travels at a constant speed of 40 km ⁄ h, calculate its kinetic energy in kJ.:

9.259 kJ
92.59 kJ
925.9 kJ
None of the above

Energy Work & Power Notes App & e-Book – IGCSE O Level Physics Admission Tests

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