Question

A child prepares to ‘save energy’ on a square sheet whose each side measures $60cm$ . At each corner of the sheet, she draws a quadrant of the radius $17.5cm$ in which she shows the ways to save energy. At the center, she draws a circle diameter $21cm$ and writes a slogan in it. Write down the four ways by which energy can be saved.

Answer 1

Hint:To solve this we should know about the following term.
Energy: In simple words it is the ability to do work. In Science it means it is the capacity to do work which may store in the form of kinetic energy, potential energy, chemical, nuclear, or various other forms.
 Conservation of energy: To save energy from the wastage is called conservation of energy.

Complete step by step answer:
In our daily life, we use energy in different forms. Like when we watch tv or use ac for cooling at that time we are using electrical energy. When we drive a car at that time we use chemical energy which is converted into mechanical energy.
So, we feel hard to do work in absence of energy.
But we should know that in the present, energy is generated at the cost of our nature. Like most electricity is produced by steam power plants or by hydrostatic energy sources which disturb our forest and use coal or other forest products as raw material.
To save our nature and to live a substantial life. We should conserve energy as we try to reduce its wastage.
Four way to save energy:
Try to utilize natural light as much as we can: it means try to finish our important work in day time. So, we don’t need to use light at night.
Turn off lights and electronics fans when you are not using them: It will save the wastage of electrical energy.
Regular repair and replacement of appliances: It means the instrument which uses energy for their working. We should regularly check them and keep them in good condition. It will reduce energy consumption as well as increase our output.
Switch toward less energy consumption instrument: as we know lead consumes less energy than our CFL and normal bulb. So, by replacing it we can save energy.
So, by saving energy at our home. We can help our nature as well as our pockets to pay less bills.

Note: In present time, we need to shift from conventional source of energy to non- conventional source of energy which is more efficient than conventional source as well as they are less fuel efficient or their raw material is easily and cheaply available. Take the example of solar energy. It is better than our far present energy producing source and sun light present everywhere free of cost.