Energy
Energy: Overview
This topic covers concepts such as Energy and Conservation of Energy Resources.
Important Questions on Energy
_____ can neither be created nor destroyed but can be transformed from one form to another form.
Which of the following is a non-renewable source of energy?
Find odd one in the following and write it in your notebook-
The kinetic energy of a freely falling body at the maximum height is _____.
In case of a vertically falling body, as potential decreases, the kinetic energy decreases.
Define Law of conservation of energy?
Define is law of conservation of mechanical energy?
Examine the instances given below and find out those which help in the conservation of fuels. Give reason and explain.
Aswathy operates the television set using the remote controller only and never switches off the power.
Examine the instances given below and find out those which help in the conservation of fuels. Give reason and explain.
As Raju keeps all the windows open during the day, he gets enough light and breeze. He doesn’t have to use a lamp or fan.
Examine the instances given below and find out those which help in the conservation of fuels. Give reason and explain.
At Sathi’s home, her parents and other members of the family use the electric iron at different times.
Examine the instances given below and find out those which help in the conservation of fuels. Give reason and explain.
Rahim uses a motor car only when he travels with his family but uses a bus for travel at other times.
Examine the instances given below and find out those which help in the conservation of fuels. Give reason and explain.
Babu uses a cycle to go to the shop though he owns a motorcycle.
What are the changes to be introduced in the devices and sources of energy for cooking?
What are the ways to control the consumption of electricity?
What do you do to save electricity?
What should we do to conserve non-renewable energy resources?
What can happen if coal reserves are used heavily? How do they deplete?
What is the primary purpose of proper vehicle maintenance in fuel conservation?
Which one of the following sources of energy must be used to conserve energy sources for prolonged use?
