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Sources of Energy Science - Sources of Energy

Maharashtra Board - STD 10 - Science (MSBSHSE - English Medium). 281 questions in this chapter.

Question types

Sources of Energy question types

281 questions across 7 question groups — pick any mix to generate a Science paper with step-by-step answer keys.

281
Questions
7
Question groups
5
Question types
Sample Questions

Sources of Energy questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 1M.C.Q1 Mark
The fuel which is not used at thermal power plants is:
  • A
    Coal.
  • ✓
    Uranium.
  • C
    Natural gas.
  • D
    Fuel oil.

Answer: B.

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Q 2M.C.Q1 Mark
Solar cells are made of:
  • A
    Conductors.
  • B
    Insulators.
  • ✓
    Semi$-$conductors.
  • D
    Super$-$conductors.

Answer: C.

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Q 3M.C.Q1 Mark
A good fuel is one which possesses:
  • A
    High calorific value and low ignition temperature.
  • B
    High calorific value and high ignition temperature.
  • ✓
    High calorific value and moderate ignition temperature.
  • D
    Low calorific value and moderate ignition temperature.

Answer: C.

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Q 4M.C.Q1 Mark
The product of petroleum used to drive heavy vehicles like trucks is:
  • A
    Petrol.
  • B
    Kerosene.
  • ✓
    Diesel.
  • D
    Carbon oxide.

Answer: C.

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Q 5M.C.Q1 Mark
The non$-$renewable source of energy among the following is:
  • A
    Hydroelectricity.
  • B
    Sewage gas.
  • ✓
    Natural gas.
  • D
    Gobar gas.

Answer: C.

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Q 21Answer the following questions: [5 M]5 Marks
The gravitational pull of the moon cause the sea-water to rise periodically.
  1. What name is given to the condition of the sea when water to rise periodically.
  2. What name is given to the condition of the sea when its raised water recedes?
  3. What name is given to the energy which can be harnessed from this natural phenomenon?
  4. Draw labelled diagram to show how this energy can be harnessed from this natural.
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Q 22Answer the following questions: [5 M]5 Marks
A nuclear reaction is represented by the following equation:
$^{235}_{\ \ 92}\text{U}+{^{1}_{0}\text{n}}\rightarrow{^{139}_{\ \ 56}\text{Ba}}+{^{94}_{36}\text{Kr}}+\text{xc}+\text{E}$
  1. Name the process represented by this equation and describe what takes place
  2. Identify the particle c and the number x of such particles produced in the reaction.
  3. What does E represent?
  4. Name one installation where the above nuclear reaction is utilised.
  5. What type of bomb is based on similar type of reaction?
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Q 23Answer the following questions: [5 M]5 Marks
A certain form of energy is available due to the difference in the temperature of water at the surface of the ocean and its deeper levels.
  1. Name the form of energy.
  2. Is this energy ultimately derived from the sun or not?
  3. Explain how this form of energy can be converted into electricity.
  4. What is the minimum temperature difference in water at the surface of ocean and its deeper level which is required to operate power plants based on this energy?
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Q 24Answer the following questions: [5 M]5 Marks
A nuclear reaction is represented by the equation:$^{2}_{1}\text{H}+{^{2}_{1}\text{H}}\rightarrow{^{3}_{2}\text{He}}+\text{xc}+\text{E}$
  1. Name the process represented by this equation and describe what happens during this reaction.
  2. Identify the particle c and the number x of such particles produced in the reaction.
  3. What does E represent?
  4. State two conditions under which such a reaction takes place.
  5. What type of nuclear bomb is based on similar reactions?
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Q 28Fill in the blanks.1 Mark
Fill in the following blank with a suitable word:
The amount of heat produced by burning a unit mass of a fuel completely is known as itsa__________ value.
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Q 31Case study.4 Marks
The calorific values of five fuels A, B, C, D and E are given below:
(A) 48kJ/ g
(B) 17kJ/ g
(C) 150kJ/ g
(D) 50kJ/ g
(E) 30kJ/ g
  1. Which of the fuels could be: (i) cooking gas (ii) alcohol (iii) wood (iv) hydrogen (v) kerosene?
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