10th Standard CBSE - Science - Sources of Energy

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Question - 1

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 - 2

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 - 3

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 Natural energy
  • D Bio-mass

Question - 4

Which of the following is a non-renewable source of energy

  • A Wood
  • B Sun
  • C Fossil fuel 
  • D Wind

Question - 5

Acid rain happen 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 a produced due to friction among clouds
  • D Earth's atmosphere contains acids.

Question - 6

Fuel used in thermal power plant is 

  • A Water
  • B Uranium
  • C Biomass
  • D Fossil fuels

Question - 7

In a hydro power plant

  • A Potential energy possessed by stored water is converted into electricity.
  • B Kinetic energy possessed by stored water in converted into potential energy.
  • C Electricity is extracted form water.
  • D Water is converted into steam to produce electricity.

Question - 8

Which is the ultimate source of energy?

  • A Water
  • B Sun
  • C Uranium
  • D Fossil fuels.

Question - 9

Which one of the following forms of energy leads to least environment pollution in the process of its harnessing and utilization?

  • A Nuclear energy
  • B Thermal energy
  • C Solar energy
  • D Geothermal energy

Question - 10

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.