Basic Science, JSS1 Third Term, Week 4
Topic: Energy
Introduction
Energy is a science concept that has become a common vocabulary of everyday speech by both adults and children.
Meaning of Energy
Energy may be said to mean ability to do work. Therefore, a man, an object or a thing may be said to have energy if it possesses the ability to do work.
Sources of Energy
The food we eat supplies us with energy for physical and mental activities. However, you will observe that human labour cannot achieve much in lifting a heavy load as cranes can do. Therefore, man has found that there are other sources of energy, which he can use to do work more successfully. These other forms of energy may come from:
- Coal: This may be used to produce coal fire, which is used in driving locomotive trains, in metal smelting and in cooking
- Crude oil: This may be used in producing petrol, kerosene, etc, for drivng cars, aeroplanes, cooking, and lubrication
- Sunlight: Used for seeing, drying of clothes and other things, powering of solar cells. The sun is the primary source of energy
- Battery: Used to start cars, produce electric current and light, etc.
- Dams: For hydroelectricity
- Torchlight: For producing
Read more below:
https://passnownow.com/lesson/energy/
