Law of conservation of energy class 9 example
Answers
Some examples are as follows:-
1) when a moving car hits a parked car causes for car to move. The energy transfer from the moving car to Parked card.
2) when you push the book across the table the energy is transformed from your arms to book causing book to move.
3) singers hitting piano keys transfer energy from the hand to keys.
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Explanation:
The modern lifestyle and the advance in technology have had a very bad impact on natural resources. Natural resources like coal and petroleum are depleting at a very fast rate, and once they are depleted, we will have to depend on other sources of energy. Therefore, it is very necessary for us humans to act in a way that ensures the conservation of natural resources. There are thousands of ways of conserving natural resources. The main idea of conservation is to use natural resources with optimization, and do not waste any natural resources. All you have to do is to act according to the situation so that the use of natural resources is minimal. For instance, using bicycles or walking sometimes saves a lot of fuel. Using public transport (city buses and metro trains) also helps in saving a lot of oil. Saving water while bathing, cleaning, etc. help in water conservation.
Fossil fuels are the fuels that are obtained from the remains of dead organisms. Some examples of fossil fuels are Coal, Natural gas, oil. Since the quantity of fossil fuels is not unlimited in nature, they are not going to last forever. If we continue to use them, or rather waste them like the way we are doing now, they will soon get depleted. Some ways of conservation of fossil fuels are already taken care of. Several countries have started using green energy – hydropower and solar power. Power can be generated using water, or sunlight, or wind, and this saves a lot of precious fossil fuels like coal.
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