CBSE Questions for Class 10 Physics Sources Of Energy Quiz 6 - MCQExams.com

Which of the following can't be used to make a solar cell?
  • Silicon
  • Platinum
  • Gallium
  • Germanium
The oceans cover almost ...... percent of the surface of earth with water and act as a vast collector of ...... energy.
  • $$71$$, chemical
  • $$97$$, solar
  • $$71$$, solar
  • $$17$$, hydroenergy
Which of the following devices transforms light energy into chemical energy?
  • Car dynamo
  • Electric motor
  • Electric fan
  • None of these
Of the following, ____________ converts light energy into electrical energy.
  • Motor
  • Battery
  • Solar cell
  • None of these
Of the following, the fuel having different from others is
  • Water gas
  • Coal gas
  • Producer gas
  • Coke
The generation of electricity from water energy
  • Will never get exhausted
  • Will not produce any environmental pollution
  • Is renewable source of energy
  • All the above are correct
The sources of energy which are being produced continuously in nature and are inexhaustible, are called
  • Conventional sources
  • Non-renewable sources
  • Non-conventional sources
  • None of these
The source of energy which is different from others is
  • Lignite
  • Natural gas
  • Sun
  • Coal
Which of the following is not a form of oceanic energy?
  • Energy from biomass
  • Tidal energy
  • Ocean thermal energy
  • Solar energy
At present, the contribution of hydroelectricity to the total power generation in India is
  • A little more than $$22$$%
  • A little more than $$35$$%
  • A little more than $$47$$%
  • None of these
Energy available from the oceans is
  • OTE
  • Tidal energy
  • Sea-waves energy
  • All of these
Tidal energy is a major source of energy due to the presence of large water bodies on the earth.
  • True
  • False
Principle of Hydrogen bomb is .................. reactions.
  • Uncontrolled fusion
  • Fission
  • Controlled fusion
  • None of these
Anaerobic microoraganisms decompose animal and plant wastes in the presence of water and produces gases such as methane, $$CO_2, H_2$$ and $$H_2S$$. The mixture of these gases is called biomass.
  • True
  • False
  • Nither
  • Either
Among the following the sources of energy for which the sun is not a chief source of energy is ________.
  • Hydroelectric power plant
  • Ocean thermal energy conversion (OTEC).
  • Tidal energy
  • Biomass.
_________ is / are used to produce energy in OTEC.
  • Tidal energy
  • Temperature difference between the different layers of water in ocean
  • Ocean waves
  • None of the above
The output of a given windmill
  • increases with an increase in wind velocity.
  • decreases with an increase in wind velocity.
  • is independent of wind velocity.
  • cannot be determined
Find the false statement about the Geothermal power plant from the following statements given below :-
  • Geothermal power plants cannot operate round the clock.
  • The initial cost in setting up this plant will be high.
  • This type of source is renewable.
  • This plant can be set only at the specific locations
Find the false statement from the following statements given below:
  • Geothermal power plants cannot operate round the clock.
  • The initial cost in setting up Geothermal power plant will be high.
  • Geothermal power plant uses free and renewable source of energy.
  • Operating cost involved in a Geothermal power plant is less.
Which of the following is not a high wind-energy region of India?
  • Bay of Bengal
  • Gujarat
  • The Arabian sea Islands
  • Punjab
Solar energy provides _________.
  • Wind energy
  • Light energy
  • Heat energy
  • All the above
 From below which are the qualities of good fossil fuel?
  • Readily available
  • Low cost
  • high calorific value
  • All of above
Arrange the following steps of conversion of ocean thermal energy into electricity, in a proper sequence.
(a) The vapour of ammonia or CFC is passed over the turbines of generators.
(b) The hot water from the ocean is used to vapourise the liquid like ammonia or CFC.
(c) Cold water from the ocean depths is used to cool the vapour again into liquid.
(d) This cold liquid is again vapourised and the process continues.
  • b a c d
  • c a b d
  • c b a d
  • a b c d
The fuel formed by the remnants of marine life is:
  • Petroleum
  • Electricity
  • Biogas
  • Coal
Which statement about nuclear fusion is false?
  • Nuclear fusion happens in the sun
  • Nuclear fusion is the joining of the nuclei of atoms
  • Nuclear fusion is currently used to generate electrical energy
  • Nuclear fusion can use hydrogen as fuel.
The fossil fuel,among the following is 
  • Petroleum
  • Cow-dung cakes
  • Firewood
  • Agricultural wastes
The heat energy from hot rocks present inside the earth is known as
  • Solar energy
  • Wind energy
  • Tidal energy
  • Geothermal energy
The energy possessed by very hot rocks inside the earth is called the _______ energy and is used to generate electricity.
  • Geothermal
  • Nuclear
  • Hydrothermal
  • Thermal
Arrange the following steps in the conversion of hydel energy to electricity in a proper sequence.
(a) Released water is made to fall on the blades of the turbines.
(b) Water in the dam is released.
(c) Water is collected in the dam.
(d) Potential energy is converted to kinetic energy.
(e) The armature of the electric generator rotates to produce electricity.
  • b,c,d,e,a
  • a,d,b,c,e
  • e,c,d,b,a
  • c,b,d,a,e
Biogas is a mixture of:
  • $$SO_2 + H_2S$$ 
  • $$O_2+CO_2+O_3$$
  • $$CO_2+CH_4+N_2+H_2S$$
  • $$NO_2+H_2+CO_2$$
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