MCQ Questions for Class 10 Science Chapter 14 Sources of Energy

By doing MCQ Questions for Class 10 Science Chapter 14 Sources of Energy, students can identify their weaker areas and focus on them more. These are a great way for students to revise all the concepts they have learned in a quick and easy way.

Chapter 14 Class 10 Science MCQ questions can be a useful tool for developing skills such as critical thinking and problem solving. It is an effective way of testing a student’s knowledge.

Chapter 14 Sources of Energy Class 10 Science MCQ Questions

1. Fossil fuels are considered to be non-renewable sources of energy because
(a) They are produced underground and become costly to extract.
(b) They take millions of years to be produced though used in a little time
(c) They produce a lot of smoke
(d) They are less efficient fuels
▶ (b) They take millions of years to be produced though used in a little time

2. Pollution caused by burning of fossil fuels can be controlled to some extent
(a) By increasing the efficiency of the combustion process.
(b) By using fans in the vehicles
(c) By increasing their cost.
(d) Banning the use of fossils fuels
▶ (a) By increasing the efficiency of the combustion process.

3. Which of the following statement is false ?
(a) Biomass is derived from charcoal.
(b) In the presence of oxygen, biomass undergoes decomposition to form bio gas.
(c) Wind energy converts mechanical energy into electrical energy.
(d) Solar radiations are converted into electricity called solar energy.
▶ (b) In the presence of oxygen, biomass undergoes decomposition to form bio gas.

4. Biogas is a better fuel than animal dung cake because
(a) biogas has lower calorific value.
(b) animal dung cake has high calorific value
(c) biogas bums smoke and leaves no residue
(d) biogas is used as a fuel for cooking only whereas dung cake can be used for cooking, illuminate the lanterns.
▶ (c) biogas bums smoke and leaves no residue

5. What kind of mirror is used in a solar cooker?
(a) Concave mirror
(b) Convex mirror
(c) Plane mirror
(d) None of these
▶ (a) Concave mirror

6. Which of the following is not correct about the construction of solar cookers or solar heaters?
(a) Black surface absorb more heat as compared to white objects.
(b) Spherical reflecting surfaces can be utilized to concentrate solar energy.
(c) Covering with a glass plate cause increase in temperature by green house effect.
(d) Black surface do not absorb any heat.
▶ (d) Black surface do not absorb any heat.

7. Most of the sources of energy we use represent stored 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
▶ (c) Nuclear energy

8. Wood, coal, energy of flowing water and wind are considered to be:
(a) Conventional sources of energy
(b) Unconventional sources of energy
(c) Renewable sources of energy
(d) Non-renewable sources of energy
▶ (c) Renewable sources of energy

9. Oxides of Carbon, Nitrogen and Sulphur released on burning of fossils fuels are harmful because
(a) They are acidic oxides and can cause acid rains.
(b) They cause noise pollution
(c) They cause sound problem
(d) They cause vision disorder
▶ (a) They are acidic oxides and can cause acid rains.

10. Hydro Power Plants utilize the potential energy of water stored at a height by
(a) Changing potential energy to kinetic energy of flowing (falling) water and then converting it to electrical energy
(b) Changing potential energy to heat energy of water and then converting it to electrical energy
(c) Changing potential energy to gravitational energy of water and then converting it to electrical energy
(d) There is no interchange of energy takes place
▶ (a) Changing potential energy to kinetic energy of flowing (falling) water and then converting it to electrical energy

11. Choose the incorrect statement regarding wind power.
(a) It is readily and abundantly available at every place of the earth free of cost.
(b) It is eco-friendly and does not produce any kind of environmental pollution.
(c) It is a renewable source as air itself is a renewable and inexhaustible resource
(d) It is a cheap source of energy, as it does not involve any costly investment
▶ (d) It is a cheap source of energy, as it does not involve any costly investment

12. Storage of water in reservoirs for hydro power plants cause socio-economic problems besides
(a) Air pollution
(b) Destruction of large eco systems
(c) Water pollution
(d) Sound pollution
▶ (b) Destruction of large eco systems

13. Most of the sources of energy we use represent stored 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) Bio-mass
▶ (c) Nuclear energy

14. Fusion reaction is also known as
(a) chemical reaction
(b) elastic scattering
(c) thermo nuclear reaction
(d) photo nuclear reaction
▶ (c) thermo nuclear reaction

15. Although charcoal is a clean and deter source of heat energy yet it cannot be used as a comestic fuel because it
(a) cause environmental pollution
(b) produce less heat energy
(c) cannot be stored easily
(d) is expensive fuel
▶ (d) is expensive fuel

16. Two acidic oxides released on burning fossil fuels
(a) Nitrogen oxides and Sulphur oxides
(b) Sulphur oxides and Magnesium oxide
(c) Carbon dioxide and Sulphur oxides
(d) Carbon dioxide and Nitrogen oxides
▶ (a) Nitrogen oxides and Sulphur oxides

17. What kind of energy is possessed by water stored in dams?
(a) Kinetic energy
(b) Potential energy
(c) Mechanical energy
(d) Wind energy
▶ (b) Potential energy

18. Which of the following sources of electricity involves more running expenses?
(a) Thermal power station
(b) Hydro power station
(c) Solar cells
(d) Geothermal source
▶ (a) Thermal power station

19. Why are the inner walls and bottom of the box-type solar cookers painted black?
(a) Preserve food
(b) gives colour
(c) absorb heat
(d) rust proof
▶ (c) absorb heat

20. Acid rain happens because:
(a) sun leads to heating of upper layer of atmosphere.
(b) burning of fossil fuels release oxides of carbon, nitrogen and sulphur in the atmosphere.
(c) electrical charges are produced due to friction amongst clouds. earth atmosphere contains acids.
(d) earth atmosphere contains acids.
▶ (b) burning of fossil fuels release oxides of carbon, nitrogen and sulphur in the atmosphere.

21. Which one of the following forms of energy leads to least environmental pollution in the process of its harnessing and utilization?
(a) nuclear energy
(b) thermal energy
(c) solar energy
(d) geothermal energy
▶ (c) solar energy

22. The inhalation of fumes and obnoxious smoke from coal mines causes which type of disease?
(a) Pulmonary disease
(b) Coronary artery disease
(c) Hepatitis
(d) Liver cancer
▶ (a) Pulmonary disease

23. 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
▶ (b) temperature difference at different levels in the ocean

24. 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
▶ (c) depends on wind velocity

25. 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 water increases with height.
(d) more water molecules dissociate into ions.
▶ (b) larger amount of potential energy is converted into kinetic energy.