Environmental Studies · Physics

Solar Radiation and Energy

876 Questions

Enhance your general science knowledge with these questions on solar radiation and energy. The topics span solar thermal power plants, photovoltaic devices, and the sun's energy output. This material is useful for environmental studies and physics.

Solar energy conversionSun luminosity and compositionAtmospheric reflectionSolar thermal technology

Solar Radiation and Energy Questions

Multiple choice
  1. TRUE

  2. FALSE

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Living things, specifically producers like plants, capture solar energy to sustain life on Earth. Therefore, the statement that they cannot gain energy from the Sun is false.

Multiple choice
  1. polarization, refraction, diffraction

  2. conduction, expansion, polarization

  3. radiation, conduction, convection

  4. radiation, absorption, expansion

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The three primary methods of heat transfer are radiation, conduction, and convection. These processes are essential for distributing energy throughout Earth's systems.

Multiple choice physics the essence of change different forms of energy energy conversions energy transformations and energy transfers

A solar water heater converts

  1. Light energy into heat energy

  2. Heat energy into light energy

  3. Chemical energy into heat energy

  4. Light energy into electrical energy

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Solar heater absorbs light, and thus photons of light are absorbed and the energy contained in them is converted to heat energy, which raises the temperature of water flowing slowly in contact with the plate and thus heat energy is transfered from plate to water.

Hence a solar heater converts light energy into heat energy.
Option A.

Multiple choice physics the essence of change different forms of energy energy conversions energy transformations and energy transfers

A plant usually stores its carbohydrates in its fruits. This process also shows the conversion of  _______ energy to _______ energy.

  1. kinetic to potential

  2. mechanical to chemical

  3. solar to chemical

  4. none of these

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Plant takes heat from the sun in form of solar energy and using photosynthesis process, this energy is converted to carbohydrates.

Multiple choice biology living in harmony climate factors abiotic components organisms and environment

Source of energy in ecosystem is

  1. Sun

  2. ATP

  3. Sugar made by plants

  4. Green plant

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The source of energy in an ecosystem is the sun. The solar energy is trapped by green plants and converted into biologically useful form i.e., carbohydrates. All the consumers depend either directly or indirectly on green plants for nutrition. The energy flow in an ecosystem is always unidirectional i.e., solar radiation to producers to herbivores to carnivores.

Multiple choice biology living in harmony climate factors abiotic components organisms and environment

Which of the following is a source of energy to an ecosystem?

  1. Solar energy

  2. Sugar stored

  3. Heat liberated during respiration

  4. ATP

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In an ecosystem, green plants trap solar energy and convert it into sugars which are utilised by all the living organisms and also passed on to successive trophic levels. Thus, the correct answer is option A.

Multiple choice biology living in harmony climate factors abiotic components organisms and environment

Source of energy in ecosystem is

  1. Sun

  2. Sugar produced in photosynthesis

  3. Green plants

  4. ATP

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

An ecosystem consists of living things like producers, consumers and decomposers and nonliving things like air, water, land. The ultimate source of energy in an ecosystem is sun. The plants in presence of sunlight synthesize its food. From plants, the energy is transferred to primary consumers and secondary consumers and decomposers. 

The correct answer is 'Sun.'

Multiple choice biology living in harmony climate factors abiotic components organisms and environment

In which ecosystem sun is main source of energy?

  1. Fuel power ecosystem

  2. Man subsidized solar power ecosystem

  3. Unsubsidized natural solar powered ecosystem

  4. Naturally subsidized solar powered ecosystem

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Naturally subsidized solar-powered ecosystems are those that rely on the sun as the primary energy source but are also supported by natural energy flows like tides, wind, or flowing water.

Multiple choice biology living in harmony climate factors abiotic components organisms and environment

Multinational source of energy is

  1. Soil

  2. Water

  3. Sun

  4. All the above

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • The sun is made up of about 80% hydrogen, 20% helium and only 0.1% other elements. 
  • Sun is the most important source of energy. The sun is the source of life on our planet Earth and, directly or indirectly, is the fuel for most renewable systems. Photovoltaic and solar thermal systems, as well as solar thermal power stations, convert solar irradiation directly into useable energy.
  • Hence Multinational source of energy is the sun.
  • So, the correct answer is 'Sun'.
Multiple choice biology living in harmony climate factors abiotic components organisms and environment

Choose the correct answers from the alternatives given :
What is the source of the energy that flows through the living world?

  1. Photosynthesis

  2. Chemical bonds

  3. Sun

  4. Green plants

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sun is the ultimate and major source of energy which is required and fulfills the need of the world. photosynthesis and chemical bonds are performed and formed respectively by the sunlight due to which all the necessary reactions occur leading to the completion of all the processes. Green plants require sunlight to produce organic food in which water and gases mix with sunlight to produce their food.

So, the correct option is ' Sun'.