Energy Transformation.
The law of energy conservation statesthat, energy cannot be created or destroyed but can be changed to other forms of energy.
| Forms of energy | Sources |
| Potential energy (stored) | Possessed by objects at rest. Found in fuels, dammed, water, elastic rubber. |
| Kinetic energy (motion) | Possessed by moving objects. Found in running water, wind, moving stone, moving car etc. |
| Chemical energy | Found in chemicals, fuels, food, car battery, dry cells, candlewax and all fuels |
| Heat energy | Main source is sun. Other sources include; friction, burning fuels, electricity and food. |
| Light energy | Main source is sun. Other sources include; stars, electricity, lamps et |
| Magnet energy | Found in magnets, loadstones and electromagnet |
| Sound Energy | Produced when objects vibrates. Sources include; pianos, guitas, drums etc |
| Mechanical energy | Produced as a result of potential energy and kinetic energy. Examples include; rotating turbines, hammer stricking a gong, between a bicycle and road |
| Elastic potential | Found in streched rubber band or compressed spring. |
Energy Conservation.
Energy conservation means protecting, preserving, restoring and managing energy resources.
Ways of Conserving of Energy.
- Using energy sparingly by:
- Switching bulbs off when not needed.
- Using public transport instead of private vehicle.
- Using bicycles or walking for short distance.
- Using vehicles with low fuel consumption.
- Using thermosflask and hot pots to keep food hot.
- Using energy saving bulbs.
- Using energy efficient devices.
- Modern jiko/improvised jiko
- Clay cookers.
- Using renewable forms of energy.
Renewable forms of energy refers to forms that are inexhaustible like wind, water, sunlight, food, biogas and forests.
Non-renewable sources of energy are those that can get exhausted when use like petrol, diesel, kerosene, natural gas
Advantages of Renewable Energy.
- Are cheap.
- Do not pollute the environment.
- Help to conserve non renewable forms of energy.
- Readily available and in abundance.
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