Check the below NCERT MCQ Questions for Class 10 Science Chapter 14 Sources of Energy with Answers Pdf free download. MCQ Questions for Class 10 Science with Answers were prepared based on the latest exam pattern. We have Provided Sources of Energy Class 10 Science MCQs Questions with Answers to help students understand the concept very well.
Class 10 Science Biology Chapter 14 MCQ With Answers
You can refer to NCERT Solutions for Class 10 Science Chapter 14 Sources of Energy to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.
Biology Class 10 Chapter 14 MCQs on Sources of Energy
Question 1.
Which of the following is a non-renewable source of energy?
(a) Wood
(b) Sun
(c) Fossil fuels
(d) Wind
Answer
Answer: (c) Fossil fuels
Question 2.
Acid rain happens because
(a) Sun heats up the upper layer of the atmosphere
(b) burning of fossil fuels releases oxides of carbon, nitrogen and sulphur in the atmosphere
(c) electrical charges are produced due to friction amongst clouds
(d) earth atmosphere contains acids
Answer
Answer: (b) burning of fossil fuels releases oxides of carbon, nitrogen and sulphur in the atmosphere
Question 3.
Fuel used in thermal power plants is
(a) water
(b) uranium
(c) biomass
(d) fossil fuels
Answer
Answer: (d) fossil fuels
Question 4.
In a hydro power plant
(a) potential energy possessed by stored water is converted into electricity
(b) kinetic energy possessed by stored water is converted into potential energy
(c) electricity is extracted from water
(d) water is converted into steam to produce electricity
Answer
Answer: (a) potential energy possessed by stored water is converted into electricity
Question 5.
Which is the ultimate source of energy?
(a) Water
(b) Sun
(c) Uranium
(d) Fossil fuels
Answer
Answer: (b) Sun
Question 6.
Which one of the following forms of energy leads to least environmental pollution in the process of its harnessing and utilisation?
(a) Nuclear energy
(b) Thermal energy
(c) Solar energy
(d) Geothermal energy
Answer
Answer: (c) Solar energy
Question 7.
Ocean thermal energy is due to
(a) energy stored by waves in the ocean
(b) temperature difference at different levels in the ocean
(c) pressure difference at different levels in the ocean
(d) tides arising out in the ocean
Answer
Answer: (b) temperature difference at different levels in the ocean
Question 8.
The major problem in harnessing nuclear energy is how to
(a) split nuclei
(b) sustain the reaction
(c) dispose off spent fuel safely
(d) convert nuclear energy into electrical energy
Answer
Answer: (c) dispose off spent fuel safely
Question 9.
Which part of the solar cooker is responsible for greenhouse effect?
(a) Coating with black colour inside the box
(b) Mirror
(c) Glass sheet
(d) Outer cover of the solar cooker
Answer
Answer: (c) Glass sheet
Question 10.
The main constituent of biogas is
(a) methane
(b) carbon dioxide
(c) hydrogen
(d) hydrogen sulphide
Answer
Answer: (a) methane
Question 11.
The power generated in a windmill
(a) is more in rainy season since damp air would mean more air mass hitting the blades
(b) depends on the height of the tower
(c) depends on wind velocity
(d) can be increased by planting tall trees close to the tower
Answer
Answer: (c) depends on wind velocity
Question 12.
Choose the correct statement.
(a) Sun is considered as an inexhaustible source of energy
(b) There is infinite storage of fossil fuel inside the Earth
(c) Hydro and wind energy plants are non polluting sources of energy
(d) Waste from a nuclear power plant can be easily disposed off
Answer
Answer: (a) Sun is considered as an inexhaustible source of energy
Question 13.
In a hydroelectric power plant more electrical power can be generated if water falls from a greater height because
(a) its temperature increases
(b) larger amount of potential energy is converted into kinetic energy
(c) the electricity content of water increases with height
(d) more water molecules dissociate into ions
Answer
Answer: (b) larger amount of potential energy is converted into kinetic energy
Question 14.
Choose the incorrect statement regarding wind power.
(a) It is expected to harness wind power to minimum in open space.
(b) The potential energy content of wind blowing at high altitudes is the source of wind power.
(c) Wind hitting the blades of a windmill causes them to rotate. The rotation thus achieved can be utilised further.
(d) One possible method of utilising the energy of rotational motion of the blades of a windmill is to run the turbine of an electric generator.
Answer
Answer: (b) The potential energy content of wind blowing at high altitudes is the source of wind power.
Question 15.
Choose the incorrect statement.
(a) We are encouraged to plant more trees so as to ensure clean environment and also provide biomass fuel.
(b) Gobar gas is produced when crops, vegetable wastes, etc., decompose in the absence of oxygen.
(c) The main ingredient of biogas is ethane and it gives a lot of smoke and also produces a lot of residual ash.
(d) Biomass is a renewable source of energy.
Answer
Answer: (c) The main ingredient of biogas is ethane and it gives a lot of smoke and also produces a lot of residual ash.
Fill in the blanks
1. We need to conserve fossil fuels because these are …………… sources of energy.
Answer
Answer: non-renewable
2. In a thermal power plant …………… are burnt to heat water and produce steam.
Answer
Answer: fossil fuels
3. A …………… consists of a structure similar to a large electric fan erected at some height on a rigid support.
Answer
Answer: windmill
4. …………… , …………… breakdown complex compounds in the cow dung slurry in a biogas plant to generate biogas.
Answer
Answer: Anaerobic microorganisms
5. A …………… surface absorbs more heat as compared to a white or a reflecting surface under identical conditions.
Answer
Answer: black
6. …………… are the upper regions in the Earth’s crust where hot molten rocks are found.
Answer
Answer: Hot spots
Match the following columns
| Column I | Column II |
| 1. Thermal power plant | (a) Methane |
| 2. Hydro power plant | (b) Nuclear fission |
| 3. Major component of biogas | (c) Use coal, petroleum and natural gas to produce thermal electricity |
| 4. Device which converts solar energy into electricity | (d) Solar cell |
| 5. Nuclear power plant | (e) Dams are constructed for power generation |
Answer
Answer:
| Column I | Column II |
| 1. Thermal power plant | (c) Use coal, petroleum and natural gas to produce thermal electricity |
| 2. Hydro power plant | (e) Dams are constructed for power generation |
| 3. Major component of biogas | (a) Methane |
| 4. Device which converts solar energy into electricity | (d) Solar cell |
| 5. Nuclear power plant | (b) Nuclear fission |
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