Conclusion Introduction Energy is one of the most fundamental parts of our universe. We use energy to do work. Energy lights our cities.
Energy powers our vehicles, trains, planes and rockets.
Energy warms our homes, cooks our food, plays our music, gives us pictures on television. Energy powers machinery in factories. When we eat, our bodies transform the food into energy to do work. When we think or read or write, we are also doing work. Cars, planes, trolleys, boats and machinery also transform energy into work.