CBSE Class 10 Physics Sources of Energy MCQs

Question. 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 :  B

Question. Select the important factor for the site selection of a thermal power plant.
(a) Distance from the populated area
(b) Availability of fuel
(c) Availability of water
(d) Cost of plant
Answer :  C

Question. 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.
(d) earth atmosphere contains acids.
Answer :  B

Question. Which energy source is the largest source used in India?
(a) CNG
(b) LPG
(c) Coal
(d) Bio Gas
Answer :  B

Question. The main constituent of CNG is
(a) butane
(b) methane
(c) ethane
(d) propane
Answer :  B

Question. The major constituent of biogas is methane.
(a) Both A and R are true and R is the correct explanation of (a)
(b) Both A and R are true but R is not the correct explanation of (a)
(c) A is true but R is false.
(d) A is false but R is true.
(e) Both A and R are false.
Answer :  C

Question. Which of the following problem is associated with a burning of coal?
(а) Carbon-dioxide emission
(b) acid rain
(c) ash with toxic metal supurity
(d) All of the above
Answer :  D

Question. 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
Answer : B

Question. Which of the following is the ultimate source of energy for us?
(a) LPG
(b) Nuclear
(c) Solar
(d) CNG
Answer :  C

Question. Which is the ultimate source of energy?
(a) Water
(b) Sun
(c) Uranium
(d) Fossil fuels
Answer :  B

Question. Which method is used to produce electricity in hydroelectric power plant.
(a) By boiling the water to produce steam
(b) By ionizing water
(c) By running dynamo by kinetic energy
(d) Any of the above
Answer :  C

Question. Tidal energy is harnessed by constructing a dam across
(a) narrow opening to the sea
(b) wide opening to the sea
(c) the river in hilly trains
(d) the river in plane areas
Answer :  A

Question. Which of the following problem is associated with a burning of coal?
(а) Carbon-dioxide emission
(b) acid rain
(c) ash with toxic metal supurity
(d) All of the above
Answer :  D

Question. Solar cells are made of
(a) germanium
(b) silicon
(c) silver
(d) aluminium
Answer :  B

Question. 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 :  C

Question. A good fuel should possess
(a) high ignition temperature
(b) moderate ignition temperature
(c) high calorific value
(d) both high calorific value and moderate ignition temperature
Answer :  D

Question. 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 :  C

Question. The major constituent of biogas is methane.
(a) Both A and R are true and R is the correct explanation of (a)
(b) Both A and R are true but R is not the correct explanation of (a)
(c) A is true but R is false.
(d) A is false but R is true.
(e) Both A and R are false.
Answer :  C

Question. Which one of the following is a non-renewable energy source?
(a) Fossil fuels
(b) Solar energy
(c) Tidal energy
(d) Water energy
Answer :  A

Question. Which of following is more environment friendly?
(a) Burning of coal
(b) burning of fire wood
(c) burning of charcoal
(d) Burning of diesel.
Answer :  C

Question. 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 :  B

Question. Fuel used in thermal power plants is
(a) water
(b) uranium
(c) biomass
(d) fossil fuels
Answer :  D

Question. 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
Answer :  B

Question. Select the important factor for the site selection of a thermal power plant.
(a) Distance from the populated area
(b) Availability of fuel
(c) Availability of water
(d) Cost of plant
Answer :  C

Question. 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
Answer :  C

Question. choose the correct statement:
(a)Sun can be taken 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 :  A

Question. Radiations which are harmful to the living organisms are
(a) Infrared radiation.
(b) ultraviolet radiations
(c) Visible radiation.
(d) micro waves
Answer :  B

Question. One major problem in harnessing nuclear energy is
(a) converting nuclear energy into electrical energy.
(b) sustaining the reaction.
(e) splitting the nuclei.
(d) disposing off spent fuel easily.
Answer :  D

Question. Energy can neither be created nor destroyed but still everybody discuss about the energy crisis because
(a) Energy transform into different form continuously.
(b) Usable form of energy is dissipated to the surroundings in less usable forms.
(c) Energy is consumed and cannot be used again.
(d) All of the above
Answer :  D

Question. India exploded her first underground nuclear device at
(a) Ranchi
(b) Kota
(c) Jaipur
(d) Pokhran
Answer :  D

Question. A solar panel is made by combining in an arrangement
(a) solar concentrator
(b) solar cookers
(c) solar cells
(d) solar chimney
Answer :  C

Question. Hydro power plants generate electricity from:
(a) a liquid
(b) by hot liquid
(c) by steam
(d) by potential energy of water
Answer :  D

Question. Tidal energy is harnessed by constructing a dam across
(a) narrow opening to the sea
(b) wide opening to the sea
(c) the river in hilly trains
(d) the river in plane areas
Answer :  A

Question. A solar panel is made by combining in an arrangement
(a) solar concentrator
(b) solar cookers
(c) solar cells
(d) solar chimney
Answer :  C

Question. Which of the following is a non-renewable source of energy?
(a) Wood
(b) Sun
(c) Fossil fuels
(d) Wind
Answer : C

Question. 100W/m² of solar energy is received by the Earth. If all the energy was to be absorbed by a bucket of water (mass 30 kg) in 30 minutes, then the rise in temperature of water will be
(a) 18°C
(b) 15°C
(c) 14.3°C
(d) 12.3°C
Answer : C

Question. Choose the incorrect statement regarding wind power
(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 : B

Question. Which of the following is employed for harnessing the potential energy of surface water stored in a reservoir?
(a) Thermal power plant
(b) Nuclear power plant
(c) Tidal power plant
(d) Hydroelectric power plant
Answer : D

Question. Solar energy is the universal source of energy. It is converted into chemical energy by
(a) photovoltaic cells
(b) solar cooker
(c) solar concentrators
(d) green plants
Answer : D

Question. For a nuclear reactor, 48 kJ of energy is produced per minute. If the energy released per fission is 3.2X10^-11 J, then the number of fission which would be taking place in a reactor per second is
(a) 5X10¹⁴
(b) 2X10¹⁴
(c) 52X10¹³ 
(d) 2.5X10¹³
Answer : D

Question. (b) temperatSolar, biomass, geothermal, wind, and hydro-power energy are all renewable sources of energy. They are called renewable because they
(a) are clean and free to use
(b) can be converted directly into heat and electricity
(c) can be replenished by nature in a short period of time
(d) do not produce air pollution
Answer : C

Question. Which is the ultimate source of energy?
(a) Water
(b) Sun
(c) Uranium
(d) Fossil fuels
Answer : B

Question. What sector of the Indian economy consumes most of the nation’s petroleum?
(a) residential
(b) commercial
(c) industrial
(d) transportation
Answer : D

Question. Global warming focuses on an increase in the level of which gas in the atmosphere?
(a) ozone
(b) sulfur dioxide
(c) carbon dioxide
(d) nitrous oxide
Answer : C