About Energy and Power

Following are some of the multiple choice questions on the Energy and Power with answers that will help the students in developing their knowledge.

Energy and Power MCQ

1. Energy ___________________ drives our energy world.

  • creation
  • conversion
  • conservation
  • None of these

2. Which of the following is NOT an example of a non-renewable energy source?

  • Coal
  • Nuclear
  • Hydro
  • Oil

3. Stored energy in the form of position or condition.

  • potential energy
  • kinetic energy
  • momentum
  • mechanical energy

4. Energy in the form of motion.

  • mechanical energy
  • potential energy
  • kinetic energy
  • momentum

5. The ability to do work or cause change:

  • work
  • energy
  • momentum
  • power

6. What is the unit of energy that electrical companies use?

  • kJ
  • kW
  • kJ/hour
  • kW/hour

7. Is the amount of energy being transferred over a period of time.

  • Power
  • Energy
  • Seconds
  • Joules

8. Which situation is work not done?

  • lifting a 20 pound box off the floor
  • holding a 20 pound box above the floor
  • sliding a 20 pound box across the floor
  • sliding a 20 pound box up an inclined plane

9. What is the unit of measurement for power?

  • Joules
  • Watts
  • Voltage
  • Calories

10. Where is the kinetic energy of pendulum at its highest?

  • at the top of the swing
  • at the bottom of the swing
  • at 1/4 of the swing
  • at 3/4 of the swing

11. The SI Unit for Energy is

  • Joule
  • Newton
  • Calorie
  • Watt

12. What is the difference between calculating power and work?

  • Power takes into account the time it takes to complete a task
  • Work takes into account the time it takes to complete a task
  • Power is force/area
  • Work is force/area

13. A worker climbs a ladder and does 8 J of work on a 2 N object. What is the distance they lift the object?

  • 18 m
  • 4 m
  • 10 m
  • 6 m

14. The first hydroelectric plant was set up at

  • Darjeeling
  • Assam
  • Karnataka
  • None of these

15. Petroleum occurs in this type of rocks

  • Sedimentary
  • Igneous
  • Metamorphic
  • None of these

16. Breeding and rearing of fish for food

  • Pissiculture
  • Horticulture
  • Agriculture
  • None of these

17. Petroleum is called

  • Black gold
  • Black stone
  • Black dot
  • All of above

18. Best quality coal

  • Lignite
  • Anthracite
  • Bituminous
  • Both A & B

19. Hydroelectric project on river Satluj

  • Rihand
  • Bhakra Nangal
  • Koyna
  • All of above

20. Wind mills are installed in aresa with

  • High wind velocity
  • Low WIND velocity
  • Moderate wind velocity
  • None of these

21. Large concave reflectors are used in

  • Solar power plants
  • Solar thermal appliances
  • Solar panels
  • All of above

22. Solar power generator are used for

  • Community lightening
  • Calculators
  • Toys
  • All of above

23. Energy of future is

  • Renewable sources of energy
  • Non-renewable sources of energy
  • Both
  • none of the above

24. As a candle burns, the chemical energy stored in the wax is transferred into

  • Heat and Light
  • Heat and Magnetism
  • Electricity and Light
  • Electricity and Magnetism

25. Which of the following activities involves work?I Pulling a coconut treeII Stretching a springIII Jumping on the spotIV Leaning against a wall

  • I and II
  • II and III
  • III and IV
  • I and IV

26. Which form of energy is being converted to electrical energy by the batteries in a flashlight?

  • Chemical
  • Nuclear
  • Solar
  • Sound

27. Which energy source is renewable?

  • Fuel oil
  • Natural Gas
  • WInd
  • Coal

28. Energy of motion is called

  • elastic potential energy
  • kinetic energy
  • gravitational potential energy
  • chemical energy

29. Which factor contributes to global warming?

  • increased use of solar-powered cars
  • increased burning of fossil fuels
  • better long-term weather forecasts
  • changing distance between Earth and Sun

30. The Law of Conservation of Energy states that energy cannot be created or destroyed, but energy can change

  • its total mass
  • its total volume
  • from one form to another
  • from one state of matter to another

31. Which form of energy is produced when a rubber band vibrates?

  • chemical
  • light
  • electrical
  • sound

32. The unit for power is

  • Calorie
  • Work
  • Watt
  • Power

33. All the following activities produce the same amount of work done EXCEPT

  • Lifting a box vertically through a height of 1 m with a force of 20N against the gravitational force.
  • Pushing a trolley over a distance of 2 m with a force of 10 N.
  • Pulling a drawer over a distance of 20 cm with a force of 1 N
  • Lifting up a stack of books weighing 20N to a vertical height of 100 cm.

34. As a rubber band is snapping back, it has what kind of energy?

  • Potential
  • Kinetic
  • None
  • Position

35. Which form of energy is almost always produced during energy transformations?

  • Heat
  • Electricity
  • Light
  • Sound

36. Energy is

  • Whether one feels like doing work
  • the ability to do work
  • calculated by dividing the amount of work by the amount of time to do the work
  • just another word for work

37. Which of the following activities involves work done?

  • An old man lying still on the floor
  • A boy running around a stadium
  • A girl holding a stack of books
  • A baby crying

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