A car is a road vehicle used to carry passengers. It is also called an automobile, which comes from the Greek word "auto" and the French word "mobile". This name means "self-moving", as cars do not need horses or other external sources of power to move. Cars usually have four wheels and get their power from an engine. Millions of cars were made during the 20th century. Like other vehicles, cars are made in different shapes and sizes, for people with different needs. Some small "city" cars carry only two to four people, with only small space for luggage. Other types are able to carry many passengers or heavy loads. For example, station wagons or estate cars carry from 5 to 9 people, or fewer people with lots of luggage. There are many different sizes of vans, such as minivans, which are made for families, and even small pickup trucks, which are car-like vehicles made for carrying medium-sized loads; for example, goods for delivery or plumber's and builder's tools and materials. Heavy lorries are used to carry deliveries and heavy loads. In order for a car to work, it must have a power source, where the car gets the energy it needs to turn the wheels. Most cars use some kind of fuel to make an internal combustion engine run. The power from the engine then goes to the wheels through a transmission, which has a set of gears that makes the car go faster or slower. The most common fuel in small to medium-size cars is petrol, which is called gasoline in America (people just call it "gas" though). Some larger, more expensive cars burn diesel fuel, which is used in big trucks and buses, and a few use wood gas. In some countries, such as Brazil and Sweden, a mixture of ethanol and petrol, called gasohol in Brazil and E-85 in Sweden, is used as automobile fuel. There are cars designed to run on more than one type of fuel - these are called "flex-fuel" and are very rare.
Swapout if you do not want to receive these mails
Posting Komentar