ction - 11
SUBJECTIVE
[Marks:
: Attempt any five parts. All parts carry equal marks. [5x3
D) What are the different forms of Potential Energy? (1.5)
ii) How animals and plants get chemical potential energy? (1.5)
i) Why should we conserve energy? (1)
Can you give some example of energy conversion from daily!
(2
i) If we move the object closer to the light source, what will happ
to the shadow?
ii) Suggest a way which can be used to produce electricity
naturally.
Look at the picture and answer:
Answers
Answer:
D) Answer:- Various Forms of Potential Energy
#Elastic Potential Energy.
#Electrical (Electromagnetic) Potential Energy.
#Gravitational Potential Energy.
#Nuclear Potential Energy.
ii) Answer:-Animals consume food to replenish energy; their metabolism breaks down the carbohydrates, lipids, proteins, and nucleic acids to provide chemical energy for these processes. Plants convert light energy from the sun into chemical energy stored in molecules during the process of photosynthesis.
I) Answer:-reducing energy use limits the number of carbon emissions in the environment. ... In turn, conserving energy produces a higher quality of life. Reduced emissions result in cleaner air quality. In addition, it helps create a healthier planet or at least helps sustain the resources we already have.
I) Answer:-The closer an object is to the light source, the larger the shadow it casts. This is because an object closer to the source will block a larger area of the light, increasing its shadow size.
ii) Answer:- The first power plants used water power or coal. Today a variety of energy sources are used, such as coal, nuclear, natural gas, hydroelectric, wind, and oil, as well as solar energy, tidal power, and geothermal sources.
#Guys the picture is not there.
Explanation:
Please mark me as the brainliest guys, please