Tag: towards green energy

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Questions Related to towards green energy

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

Define renewable sources of energy.

  1. A source whose energy supplied can be renewed is called renewable source of energy.

  2. A source of energy which will exhaust in future is called renewable source of energy.

  3. A natural source providing us energy which takes long time to replenish.

  4. A source of energy which causes environmental pollution is called renewable source of energy.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A natural source of energy that can provide us energy continuously without being exhausted is called a renewable source of energy.

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

Which of the following is not ultimately derived from the Sun's energy?

  1. geothermal energy

  2. wind energy

  3. nuclear energy

  4. bio-mass.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

All the sources of energy are directly or indirectly derived from the ultimate source of energy. i.e. Sun, except for the nuclear energy. Nuclear energy is derived from the molecules of the radioactive elements.

Multiple choice physics towards green energy non-conventional sources of energy electric energy generation and environment renewable and non-renewable energy
State whether the given statement is True or False :
Solar panel can be set up in remote and inaccessible hamlets or very sparsely inhabited areas. 

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Solar panels are ideal for remote areas because they do not require a connection to a centralized power grid. They can generate electricity locally using sunlight, making them a practical solution for sparsely inhabited regions.

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

Of the following, renewable source of energy is

  1. Wood

  2. Petroleum

  3. Natural gas

  4. Uranium
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Wood is a renewable source of energy because it can be replenished by planting new trees. Petroleum, natural gas, and uranium are finite fossil or mineral fuels that cannot be replaced on a human timescale.

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

The sources of energy which are being produced continuously in nature and are inexhaustible, are called

  1. Conventional sources

  2. Non-renewable sources

  3. Non-conventional sources

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

Sources of energy that are inexhaustible and produced continuously in nature are generally classified as non-conventional or renewable sources. Conventional sources like coal and petroleum are finite and exhaustible.

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

Solar energy can be used to produce

  1. Electrical energy

  2. Mechanical energy

  3. Heat energy

  4. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Solar energy can be converted into electrical energy using photovoltaic cells, heat energy using solar thermal collectors, and mechanical energy through various solar-powered engines or systems.

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

Which of the following devices transforms light energy into chemical energy?

  1. Car dynamo

  2. Electric motor

  3. Electric fan

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

None of the listed devices (car dynamo, electric motor, electric fan) transform light energy into chemical energy. Photosynthesis in plants is the primary natural process that performs this transformation.

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

Among the following the sources of energy for which the sun is not a chief source of energy is ________.

  1. Hydroelectric power plant

  2. Ocean thermal energy conversion (OTEC).

  3. Tidal energy

  4. Biomass.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Hydroelectric power depends on the water cycle driven by solar energy, OTEC relies on ocean temperature differences caused by solar heating, and biomass grows via photosynthesis driven by sunlight. Tidal energy, however, is driven primarily by the gravitational pull of the moon and the sun, making tidal energy distinct as it is not fundamentally powered by solar radiation.