Please refer to Chapter 14 Sources of Energy MCQ Class 10 Science with answers below. These multiple-choice questions have been prepared based on the latest NCERT book for Class 10 Science. Students should refer to MCQ Questions for Class 10 Science with Answers to score more marks in Grade 10 Science exams. Students should read the chapter Sources of Energy and then attempt the following objective questions.

MCQ Questions Class 10 Science Chapter 14 Sources of Energy

The Sources of Energy MCQ Class 10 Science provided below covers all important topics given in this chapter. These MCQs will help you to properly prepare for exams.

Question. Which of the following is not an example of a bio-mass energy source? 
(A) wood
(B) gobar-gas
(C) nuclear energy
(D) coal

Question. When a beta particle is given out, the atomic number of the parent atom – 
(A) Increases by unity
(B) Decreases by unity
(C) Remains the same
(D) Is halved

Question. Which of the following has least penetrating power ? 
(A) Alpha particles
(B) Gamma rays
(C) Beta particles
(D) All have the same penetrating power

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.

Question. The device in which the nuclear fission and release of energy is controlled is known as- 
(A) Thermopile
(B) Thermostat
(C) Nuclear reactor
(D) Cloud chamber

Question. For a sustained chain reaction, the reproduction factor should be – 
(A) zero
(B) one
(C) two
(D) three

Question. Moderator is used in nuclear reactor for – 
(A) slowing neutrons
(B) accelerating neutrons
(C) stopping neutrons
(D) heating the neutrons

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.

Question. The fusion reactions occur at- 
(A) low pressure
(B) low temperature
(C) extremely high temperature
(D) high temperature and low pressures

Question. The source of energy of the sun is-
(A) Nuclear fission
(B) Chemical reaction
(C) Nuclear fusion
(D) None of these

Question. The number of neutrons in an atom X of atomic number Z and mass number A is- 
(A) Zero
(B) Z
(C) A – Z
(D) A

Question. What are the disadvantage of solar energy
(a) A large surface area is required collect the solar
(b) Daily average of solar energy varies from 4 to 7 kwh/m²
(c) Highly hazardous toxic material is used in the manufacturing of solar device.
(d) All of the above

Question. The temperature inside the solar cooker ranges from
(a) 500-100°C
(b) 100-140°C
(c) 150-200°C
(d) 70-80°C

Question. Assertion: The major constituent of biogas is methane.
Reason: Biogas is produced by the aerobic degradation by animal wastes like cow ding in the presence of water.
(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.

Question. A device in which electricity is produced by the process of controlled nuclear fission reaction is called
(a) nuclear chain reaction
(b) hydel power plant
(c) nuclear reactor
(d) thermal power plant

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

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

Question. Fusion reaction is also known as
(a) chemical reaction
(b) elastic scattering
(c) thermonuclear reaction
(d) photo nuclear reaction

Question. An ideal source of energy should have
(a) higher calorific value
(b) easy transportability
(c) easy accessibility
(d) All the above

Question. U-235 will undergo fission by
(a) low energy neutrons only
(b) high energy neutrons only
(c) medium energy neutrons
(d) low energy protons only

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

Question. Geothermal energy is
(a) Heat energy in the interior of earth
(b) energy of molten mars exists in the farm of magma inside the earth.
(c) molten lava on the surface of earth
(d) energy obtained from solar thermal electric plants

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.

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

Question. The variety of coal which has the highest car-bon content
(a) Anthracite
(b) Peat
(c) Bituminous
(d) Lignite

Question. Wind is caused due to
(a) uneven heating of earth’s surface
(b) rotation of earth
(c) local conditions
(d) All of the above

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