Energy and Units Multiple Choice Questions with Answers – PDF Download

MCQ 1: In order to do work, energy is:

1. transferred or converted
2. used up
3. lost
4. lost or transferred

MCQ 2: Pendulum bob stops moving when all its original gain in gravitational potential energy has been converted to:

1. Sound Energy
2. Thermal Energy
3. Light Energy
4. Kinetic Energy

MCQ 3: An object of mass 'm' raised to a height '2h' above the ground level possesses a gravitational potential energy of:

1. 1 ⁄ 2 × mgh
2. mgh
3. 2mgh
4. m × g ⁄ 2h

MCQ 4: Knocking a nail into a wooden block with a hammer involves conversion between different forms of energy, which of the following choices present this conversion in correct order.:

1. chemical energy → gravitational potential energy → kinetic energy → (sound energy + heat energy)
2. chemical energy → kinetic energy → gravitational potential energy → (sound energy + heat energy)
3. chemical energy → (sound energy + heat energy) → kinetic energy → gravitational potential energy
4. (sound energy + heat energy) → chemical energy → kinetic energy → gravitational potential energy

MCQ 5: Wind and waves are used by the turbines to convert:

1. Mechanical Energy into Electrical Energy
2. Kinetic Energy into Electrical Energy
3. Potential energy into Kinetic Energy
4. Potential Energy into Electrical Energy