Automobiles are self-propelled vehicles that travel on roads and usually have four wheels. They are often powered by an internal combustion engine, but they may also be electric or steam driven.
The automobile has a large impact on society and the economy. It provides jobs for millions of people around the world. It makes it possible to have freedom of movement in the cities and countryside, and allows for flexible distribution of goods.
However, automobiles can cause problems as well. They pollute the air and cause traffic congestion. They also degrade the landscape, making it difficult to build new housing and other buildings.
An automobile is a very complicated machine that contains many parts. The main parts of an automobile are:
There are thousands of individual parts that make up the car and each one works with another part to make it function properly. The engine, for example, requires an electrical system to give it an initial push, and a battery that supplies energy when the engine needs it.
These systems all work together to power the car, control it, and steer it. They all also make it comfortable for the people who drive it.
The engine in the automobile is one of the most important parts. It is responsible for providing the power that turns the wheel, and electricity for lights and other systems in the car.
The other parts of the car include a chassis, which has all the major assemblies including an engine, transmission system, clutch, gearbox, propeller shaft, axles and a control system like brakes and steering. The body is the part of the car that rests on the ground and holds the tires, the seat, and other items.