Advertisements
Advertisements
Questions
Explain the difference between conventional and non-conventional sources of energy.
State two differences between conventional and non-conventional sources of energy.
Distinguish between the following.
Coal and Natural gas as sources of energy.
Advertisements
Solution 1
| Sr. No. | Conventional sources of energy | Non-conventional sources of energy |
| i. | Conventional sources of energy are the sources that are commonly in use since a long time. | Non-conventional sources of energy refer to the sources that are identified a few decades ago. |
| ii. | Conventional sources of energy are limited and exhaustible. | Non-conventional sources of energy are abundant and inexhaustible. |
| iii. | They cause pollution. | They cause little or no pollution. |
| iv. | Fuels produced from conventional sources are comparatively expensive. | Fuels produced from non-conventional sources are comparatively cheaper. |
| v. | Conventional sources do not produce green energy. | Non-conventional sources produce green energy. |
| vi. | They are primarily used for industrial and commercial purposes. | They are mainly used for domestic purposes. |
| vii. | Example: fossil fuels such as coal, natural gas, etc. | Example: wind energy, solar energy, etc. |
Solution 2
| Sr. No. | Conventional sources of energy | Non-Conventional sources of energy |
| i. | These are those sources which have been in use from ages. | These sources have generally been identified in the recent past. |
| ii. | These are non-renewable sources of energy. | These are renewable sources of energy. |
| iii. | These will last long, just for 100-200 years. | These are going to last forever. |
| iv. | These cause air and water pollution. | These do not cause any pollution. |
| v. | These are very expensive to maintain, store, and transmit, e.g., coal, mineral oil, natural gas, atomic power, and water. | These are less expensive or cheap due to local used easy to be maintained e.g. solar energy, tidal energy, wind energy, geothermal energy |
Notes
Students should refer to the answer according to their questions.
APPEARS IN
RELATED QUESTIONS
A hydro-power plant converts one form of energy into another. Name the two forms of energy.
Flowing water can rotate a turbine. Which type of energy is used up by the turbine?
What is the difference between a thermal power plant and a hydro power plant?
At a hydro power plant:
(a) kinetic energy possessed by stored water is converted into electrical energy
(b) electrical is extracted from water
(c) water is converted into steam to turn turbines and produce electricity.
(d) potential energy possessed by stored water is converted into electricity.
Read the information given below and solve the questions based on it.
Electric energy is produced in various ways like hydroelectric, wind power, Solar energy, bio-fuel, etc. These energy sources are inexhaustible, sustainable. Besides, it does not cause any environmental problem.
i. Above information is about which type of energy?
ii. Whether the fossil fuel is an example of this energy?
iii. Draw the flow chart of production of electric energy.
Give scientific reasons:
Hydroelectric energy, solar energy and wind energy are called renewable energies.
Give your opinion about whether hydroelectric plants are environment friendly or not?
Draw a neat and labelled diagram of energy transformation in solar thermal electric energy generation.
What is hydro energy? Explain the principle of generating electricity from hydro energy. How much hydro electric power is generated in India?
Kinetic energy in flowing water drives ________ to generate electricity.
Find an odd one out.
Draw the flowchart showing generation of electrical energy through hydroelectric power plant.
Complete the table.
| Advantages of hydroelectric power plant | Disadvantage of hydroelectric power plant |
Explain the stages in electric generation from the given schematic diagram.

In a hydroelectric power plant more electrical power can be generated if water falls from a greater height because ______.
Where are the Hydel power stations located in Tamil Nadu?
______ have long economic lives and low operating cost.
