Tag: electric energy generation and environment

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Questions Related to electric energy generation and environment

Multiple choice physics towards green energy non-conventional sources of energy electric energy generation and environment renewable and non-renewable energy

Energy can be extracted by creating a reservoir or basin behind a barrage and then passing tidal waters through turbines in the barrage to generate electricity. This form of energy is known as

  1. solar energy

  2. wind energy

  3. hydro energy

  4. tidal energy
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Tidal power, also called tidal energy, is a form of hydropower that converts the energy obtained from tides into useful forms of power, mainly electricity.

Multiple choice physics towards green energy non-conventional sources of energy electric energy generation and environment renewable and non-renewable energy

The average annual wind density is $3\ kW/m^2/day$ along the coastal lines of Gujarat, western ghat and central parts of India which may show a seasonal variation (i.e., in winter it may go up to $10\ kW/m^2/day$ ). This can be harnessed as

  1. non-conventional energy

  2. coastal energy

  3. wind energy

  4. None of these
Reveal answer Fill a bubble to check yourself
A,C Correct answer
Multiple choice physics towards green energy non-conventional sources of energy electric energy generation and environment renewable and non-renewable energy

The heat energy obtainable from hot rocks present inside the earth crust is termed as

  1. Nuclear energy

  2. Tidal energy

  3. Geothermal energy

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Geothermal energy is thermal energy generated and stored in the Earth. Thermal energy is the energy that determines the temperature of matter. The geothermal energy of the Earth's crust originates from the original formation of the planet and from radioactive decay of materials

Multiple choice physics towards green energy non-conventional sources of energy electric energy generation and environment renewable and non-renewable energy

Non-conventional forms of energy can be

  1. created.

  2. transduced from other forms of energy.

  3. exhausted in our lifetime.

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Non-conventional energy sources, such as solar or wind, involve converting natural energy flows into usable forms like electricity. They are not created from nothing but are transduced from existing natural energy forms.

Multiple choice physics towards green energy non-conventional sources of energy electric energy generation and environment renewable and non-renewable energy

Which fuel has the highest energy content per unit of mass of any chemical fuel?

  1. Petrol

  2. Hydrogen

  3. Uranium

  4. Coal
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Hydrogen fuel is a zero-emission fuel when burned with oxygen (if one considers water not as an emission) or used in a contained cell (allowing to react galvanically) also capable of 'reversing' the reaction if needed. It often uses electrochemical cells, or combustion in internal engines, to power vehicles and electric devices. It is also used in the propulsion of spacecraft and might potentially be mass-produced and commercialized for passenger vehicles and aircraft.

Multiple choice physics towards green energy non-conventional sources of energy electric energy generation and environment renewable and non-renewable energy

Non-conventional sources of energy are 

  1. pollution-free

  2. renewable

  3. inexhaustible

  4. exhaustible
Reveal answer Fill a bubble to check yourself
A,B,C Correct answer
Explanation

 Natural resources like wind, tides, solar, biomass, etc generate energy which is known as "Non-conventional resources“. These are pollution free ,renewable,inexhaustible  and hence we can use these to produce a clean form of energy without any wastage.