Class 10 Science MCQ Chapter 14 Sources of Energy, Class 10 Science MCQ Question Answer, Class 10 Science Multiple Choice Question Answer to each chapter is provided in the list of SCERT Science Class 10 Objective Types Question Answer so that you can easily browse through different chapters and select needs one. Class 10 Science MCQ Chapter 14 Sources of Energy Question Answer can be of great value to excel in the examination.
SCERT Class 10 Science MCQ Chapter 14 Sources of Energy
SCERT Class 10 General Science MCQ Chapter 14 Sources of Energy Notes covers all the exercise questions in SCERT Science Textbooks. The NCERT Class 10 Science MCQ Chapter 14 Sources of Energy provided here ensures a smooth and easy understanding of all the concepts. Understand the concepts behind every chapter and score well in the board exams.
Sources of Energy
Chapter – 14
Multiple Choice Questions & Answers
1. Which one of the following is not a criterion for an ideal fuel –
(a) Easily available.
(b) Produce a lot of heat.
(c) Produce a lot of smoke.
(d) Economical.
Ans: (c) Produce a lot of smoke.
2. Which one of the following is not a conventional source of energy –
(a) Fossil fuel.
(b) Hydro power plants.
(c) Thermal power plants.
(d) Soar energy.
Ans: (d) Soar energy.
3. Which one of the following gases is not present in biogas –
(a) Hydrogen.
(b) Nitrogen.
(c) Methane.
(d) Hydrogen sulphide.
Ans: (b) Nitrogen.
4. Which one of the following is an alternative source of energy –
(a) Biomass.
(b) Wind energy.
(c) Nuclear energy.
(d) Fossil fuels.
Ans: (c) Nuclear energy.
5. Which one of the following can not be obtained from sea or ocean –
(a) Tidal energy
(b) Geothermal energy.
(c) Wave energy.
(d) Ocean thermal energy.
Ans: (b) Geothermal energy.
6. Which one of the following is a renewable source of energy-
(a) Fossil fuels.
(b) Thermal power plants.
(c) Hydro power plants.
(d) Nuclear energy.
Ans: (c) Hydro power plants.
7. Which one of the following is a non- renewable source of energy-
(a) Wind energy.
(b) Water energy.
(c) Biomass.
(d) Fossil fuel.
Ans: (d) Fossil fuel.
8. A solar water heater cannot be used to get hot water on-
(a) A sunny day.
(b) A cloudy day.
(c) A hot day.
(d) A windy day.
Ans: (b) A cloudy day.
9. Which of the following is not an example of a biomass energy source?
(a) Wood.
(b) Gobar gas.
(c) Nuclear energy.
(d) Coal.
Ans: (c) Nuclear energy.
10. Most of the sources of energy we use represent solar energy. Which of the following is not ultimately derived from the sun’s energy?
(a) Geothermal energy.
(b) Wind energy.
(c) Nuclear energy.
(d) Biomass.
Ans: (c) Nuclear energy.
11. Which one of the following is a quality of a good source of energy?
(a) Does a large amount of work per unit volume or mass.
(b) Easily accessible.
(c) Easy to store and transport.
(d) All of the above.
Ans: (d) All of the above.
12. We are searching for alternate sources of energy, because-
(a) The present-day sources of energy are not efficient.
(b) The present-day sources of energy are very expensive.
(c) We will soon run out of the energy sources such as fossil fuel we are using extensively at present.
(d) All of the above.
Ans: (c) We will soon run out of the energy sources such as fossil fuel we are using extensively at present.
13. Fossil fuels-
(i) Will never exhausted.
(ii) Will exhausted soon.
(iii) Are non- renewable source of energy.
(iv) Are renewable source of energy.
(a) (i), (iv)
(b) (ii), (iii)
(c) (ii), (iv)
(d) (i), (iii)
Ans: (b) (ii), (iii)
14. The effect of burning fossil fuel is-
(i) Global Warming.
(ii) Air pollution.
(iii) Acid rain.
(iv) Green-house effect.
The correct answer is-
(a) (i), (ii)
(b) only (iv)
(c) (i), (ii), (ii)
(d) (i), (ii).(ii).(iv)
Ans: (d) (i), (ii).(ii).(iv)
15. Oxides of which of the following elements that are released on burning fossil fuels are acidic?
(a) Carbon.
(b) Nitrogen.
(c) Sulphur.
(d) All of the above.
Ans: (d) All of the above.
16. Many thermal power plants are set up near coal or oil fields, because-
(a) It is inconvenient to set up these plants in other places.
(b) More amount of electricity can be generated when they are established near coal or oil fields.
(c) transmission of electricity is more efficient than transporting coal and petroleum over the same distance.
(d) None of the above.
Ans: (c) transmission of electricity is more efficient than transporting coal and petroleum over the same distance.
17. In which of the following plants fuels are burnt to produce heat energy which is converted into electrical energy?
(a) Thermal power plant.
(b) Hydro power plant.
(c) Nuclear rector.
(d) Geothermal power plant.
Ans: (a) Thermal power plant.
18. Hydro power plants are-
(a) Conventional and non-renewable source of energy.
(b) Non-conventional and non- renewable source of energy.
(c) Conventional and renewable source of energy.
(d) Conventional and non-renewable source of energy.
Ans: (c) Conventional and renewable source of energy.
19. In hydro power plants-
(i) Heat energy is converted into electricity.
(ii) Kinetic energy of flowing water is converted into potential energy.
(iii) Kinetic energy of flowing water is converted into electricity.
(iv) Potential energy of falling water is converted into electricity-
The correct answer is-
(a) only (i)
(b) (ii), (iv)
(c) only (iii)
(d) only (iv)
Ans: (b) (ii), (iv)
20. A problem associated with dams is-
(a) Large areas of agricultural land are to be sacrificed.
(b) Large ecosystems are destroyed.
(c) None of (a) and (b)
(d) Both (a)and (b)
Ans: (d) Both (a)and (b)
21. The main reason for the apposition to the construction of Tehri Dam on the river Ganga and Sardar Sarovar Dam on the river Narmada is-
(i) Large dams destroy large ecosystems.
(ii) Large areas of human habitation are to be sacrificed.
(iii) Construction of dams creates the problem of satisfactory rehabilitation of displaced people.
(iv) Dams can be constructed only in a limited number of places, preferably in hilly terrains.
The correct answer is-
(a) only (iii)
(b) (ii), (iii)
(c) (i), (ii), (iii)
(d) (i), (ii), (iii), (iv)
Ans: (c) (i), (ii), (iii)
22. The green-house gas is-
(i) Carbon dioxide.
(ii) Methane.
(iii) Sulphur dioxide.
(iv) Nitrogen dioxide.
(a) (i)
(b) (i), (ii)
(c) (i), (iii)
(d) (i), (iii), (iv)
Ans: (b) (i), (ii)
23. Percentage amount of methane in biogas-
(a) 50%
(b) 75% .
(c) 80%
(d) 95%
Ans: (b) 75%
24. Bio-gas is an excellent fuel, because-
(i) Its heating capacity is high.
(ii) It burns without smoke.
(iii) It leaves no residue after burning.
(iv) It contains upto 75% methane.
the correct answer is-
(a) All
(b) (i), (ii), (iii)
(c) (iv)
(d) (i)
Ans: (a) All
25. Windmills harness-
(a) Energy from the sun.
(b) Potential energy of wind.
(c) Kinetic energy of water.
(d) Kinetic energy of wind.
Ans: (d) kinetic energy of wind.
26. Which one of the following is a disadvantage of wind energy?
(a) It is renewable.
(b) Wind energy farms can be established in those places where wind blows for the greater part of a year.
(c) It requires no recurring expenses.
(d) It is a clean source of energy.
Ans: (b) Wind energy farms can be established in those places where wind blows for the greater part of a year.
27. To obtain wind energy, the wind speed in the wind energy farms should be higher than.
(a) 15 km/h
(b) 50 km/h
(c) 150 km/h
(d) 100 km/h
Ans: (a) 15 km/h
28. A black surface absorbs more heat than a white or reflecting surface. Which of the following devices does not work on this principle?
(a) Solar water heater.
(b) Solar cooker.
(c) Solar cell.
(d) None of these.
Ans: (c) Solar cell.
29. A typical solar cell develops a voltage in the range – and can produce electricity of power –
(a) 0.1-1V, 0.5 W
(b) 0.5-1V, 0.7 W
(c) 1V, 1 W
(d) 0.2-2V, 220 W
Ans: (b) 0.5-1V, 0.7 W
30. The element used to make solar cells extensively-
(a) Gold.
(b) Copper.
(c) Boron.
(d) Silicon.
Ans: (d) Silicon.
31. For the ocean thermal energy conversion plants to operate, the minimum difference in temperature between the water at the surface and water at depths upto 2 km should be-
(a) 290 K
(b) 293 K
(c) 20 K
(d) 200 K
Ans: (b) 293 K
32. Which of the following energies is obtained due to the difference in temperature between the water at the surface and water in deeper sections of sea or ocean?
(a) Tidal energy.
(b) Wave energy.
(c) Geothermal energy.
(d) Ocean thermal energy.
Ans: (d) Ocean thermal energy.
33. The process used to generate nuclear energy is-
(a) Nuclear fission.
(b) Nuclear fusion.
(c) Nuclear displacement.
(d) None of these.
Ans: (a) Nuclear fission.
34. Which one of the following is a nuclear fuel-
(a) Plutonium.
(b) Thorium.
(c) Uranium.
(d) All of the above.
Ans: (d) All of the above.
Very Short & Short Type Questions and Answers
1. What is a good source of energy?
Ans: A good source of energy is one which does a large amount of work per unit volume or mass.
2. What is a good fuel?
Ans: A good fuel is one which releases a large amount of heat on burning.
3. What is a disadvantage of fossil fuels?
Ans: The disadvantage of fossil fuels is fossil fuels are non-renewable sources of energy and will not last for ever.
4. Why are we looking at alternate sources of energy?
Ans: We are looking at alternate sources of energy most of the conventional sources of energy such as fossil fuels are non-renewable sources of energy that will not Last forever.
5. What is geothermal energy?
Ans: The heat trapped in the deeper layer of the earth steam which can be used to rotate turbine to generate electricity. This is called geothermal energy.
6. What is an advantage of nuclear energy?
Ans: The advantage of nuclear energy is the energy produced by the fission of heavy atoms is quite large in amounts as compared to the other sources of energy.
7. Name two energy sources that you would consider to be renewable.
Ans: (i) Solar energy.
(ii) Wind energy.
8. Name two energy sources that you would consider to be exhaustible.
Ans: (i) Fossil fuels.
(ii) Nuclear energy.
9. What are the limitations of extracting energy from-
(a) wind.
(b) waves.
(c) tides.
Ans: (a) The limitation of extracting energy from the wind is the wind farms can only be established in those regions where wind blows for the greater part of a year with a reasonable speed.
(b) The main limitation of extracting energy from the waves is that this energy can be obtained only in the regions where waves are very strong.
(c) The main limitation of extracting energy from the tides is that the location on the sea-shore where the dams can be built are limited.
10. What are fossil fuels?
Ans: Fossil fuels are the fuels which are formed in the earth’s deeper level from the dead remains of plants and animals. Example of fossil fuels are coal and petroleum.
11. How can pollution caused by burning fossil fuels be reduced?
Ans: By increasing the efficiency of the combustion process.
12. What is a thermal power plant?
Ans: Large amount of fossil fuels are burnt every day in power stations to heat up water to produce steam which further runs the turbine to generate electricity. These plants are called thermal power plants.
13. Write one disadvantage of thermal power plants.
Ans: One disadvantage of thermal power plants is that thermal power plants use fossil fuels which are non-renewable sources of energy and will get used up one day.
14. What are hydropower plants?
Ans: Hydropower plants are power stations which generate electricity using the potential energy of water in big river dams across the rivers.
15. Write an advantage of hydropower plants.
Ans: One advantage of hydropower plants is that they use the potential energy of water and water is a renewable source of energy.
16. What are dams?
Ans: Dams are some highrise structures constructed on the river to obstruct the flow of water and thereby collect water in large reservoirs.
17. Write one advantage of dams.
Ans: They are used to generate electricity.
18. What are the advantages of a hydro power plant over thermal power plant?
Ans: Hydro power is a renewable source of energy as the water in reservoir gets refilled each time it rains. In contrary to that thermal power is non-renewable source of energy as the fossil fuels used to obtain this energy will get finished one day.
19. What is biomass?
Ans: The source of the energy which are mainly plant and animal products is called biomass.
20. What is biogas?
Ans: Bio-gas or gobar-gas is a mixture of gases like methane, carbon dioxide, hydrogen and hydrogen sulphide which is produced by the decomposition of cow-dung, vegetable waste and sewage in the absence of oxygen.
21. What is a wind mill?
Ans: A windmill is a structure similar to a large electric fan that is erected at some height on a rigid support. A windmill is used to harness the kinetic energy of wind to rotate the turbine and thereby generate electricity.
22. What is a wind energy farm?
Ans: When a number of windmills are erected over a large area, it is known as a wind energy farm.
23. Name two devices that use solar energy.
Ans: (i) Solar cooker.
(ii) Solar cell.
24. What is a solar cell?
Ans: A solar cell is a device which converts solar energy into electricity.
25. What is tidal energy?
Ans: The energy which is obtained due to the difference in sea- levels during high tide and low tide is called tidal energy.
26. Give one disadvantage of obtaining tidal energy.
Ans: The main disadvantage of obtaining tidal energy is that the locations where the dams can be built near the seashore are limited.
27. What is ocean thermal energy?
Ans: The water at the surface of the sea or ocean is heated by the sun while the water is deeper sections is relatively cold. This difference in temperature is exploited to obtain energy in conversion plants and is called ocean thermal energy.
28. What is nuclear energy?
Ans: The energy which is obtained by the bombardment of the nucleus of a heavy atom with low-energy neutrons is nuclear energy.
29. What are renewable sources of energy?
Ans: The energy sources that can be regenerated are called renewable sources of energy.
30. What are exhaustible sources or non-renewable sources of energy? Give example.
Ans: The energy sources that will get depleted some day are said to be exhaustible or non-renewable sources of energy.
31. Name the process which is used to generate nuclear energy from some heavy metals.
Ans: Nuclear fission.
32. Write the name of a non-conventional source of energy and mention its two advantages.
Ans: Solar energy.
Two advantages are –
(i) renewable source of energy.
(ii) does not pollute the environment]
33. What do you mean by a solar cell penal?
Ans: A solar cell penal is an arrangement of a number of solar cells combined with each other.
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