Please select a subject first
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Observe the figure and answer the questions given below.
a) Name the reaction.
b) Where is this reaction used?
c) Which element is used in it?
Concept: Generation of Electrical Energy
Make a table based on forms of energy and corresponding devices:
| Forms of Energy | Devices | |
| a. | Electric | _________ |
| b. | Mechanical | Sewing machine, Bicycle |
| c. | Thermal | __________ |
| d. | _________ | Solar cooker, Solar heater |
Concept: Electricity Generation using Solar Energy
Wind turbines with capacity are commercially available.
Concept: Electricity Generation using Hydroelectric Energy
Hydroelectric power station : Water stored in dams : : Nuclear power station : ____________
Concept: Power Plants Based on Nuclear Energy
Write the problems associated with hydroelectric power projects.
Concept: Power Plants Based on Nuclear Energy
Give scientific reason.
The schematic of a turbine also varies according to the type of power generation.
Concept: Generation of Electrical Energy
Give scientific reason.
Energy saving is a need of the hour.
Concept: Energy and Use of Energy
Write a short note.
Lake Tapping
Concept: Electric Energy Generation and Environment
Observe the given diagram and answer the questions.
- Which type of energy is generated?
- This power station depends on which factors?
- Is it environment friendly?
Concept: Electricity Generation using Hydroelectric Energy
Complete the table.
| Advantages of hydroelectric power plant | Disadvantage of hydroelectric power plant |
Concept: Electricity Generation using Hydroelectric Energy
Complete the following flow chart.
Concept: Generation of Electrical Energy
Draw the flowchart for the given power stations.
Power generation plant on energy of natural gas
Concept: Power Plants Based on Natural Gas
Complete the stages in electric generator using wind energy.
Concept: Electricity Generation using Hydroelectric Energy
Write limitations in an electric generator using wind energy.
Concept: Electricity Generation using Wind Energy
Complete the following table taking into account the relation between the entries in three columns:
| I | II | III |
| Coal | Thermal energy | Thermal plant |
| Uranium | ______ | Nuclear power plant |
| Water reservoir | Potential energy | ______ |
| ______ | Kinetic energy | Wind electricity plant |
Concept: Generation of Electrical Energy
When neutron is bombarded on atom of Uranium-235, it absorbs the neutron and converts into ______.
Concept: Power Plants Based on Nuclear Energy
Observe the figure and label it properly:
- What is the figure related to?
- Why are reflectors used?
- Draw a flow chart showing different stages in such a process.
- How is the process used to generate electricity?
- What other method can be used to generate electricity using the same energy source?
Concept: Electricity Generation using Solar Energy
The Hydroelectric capacity of Koyna dam is ______.
Concept: Electricity Generation using Hydroelectric Energy
Answer the following questions from figure:
- With reference to point B, potential energy of how much water reservoir in the dam will be converted into kinetic energy?
- What will be the effect on electricity generation, if the channel taking water to turbine starts at point A?
- What will be the effect on electricity generation, if the channel taking water to turbine starts at point C?
Concept: Electricity Generation using Wind Energy
Atomic power plant in Maharashtra is ______.
Concept: Power Plants Based on Nuclear Energy
