A car (or motor vehicle) is an international vehicle used to carry passengers. Cars usually have four wheels (circular objects that turn them into motion), and an engine or car that makes them move.
English Sunbeam-Talbot, since the late 1940s
"Cars" redirect here. For the Disney-Pstrong movie, see Cars (movie).
Edit the name
The word "car" comes from the Greek root "αυτό" (self) and the Latin word "mobilis" (traveling). The word means "to walk", as cars move at their own pace and do not require horses or other external forces to move.
Types of vehicles
Cars are made in different shapes and sizes, for people with different needs. Here are some common types.
A convertible is a car with a roof that can be opened or removed with an open-drive drive. The Sportier version is called roadsters.
A hatchback is a small car with a cargo area that uses the same space as a cabinet (instead of a different trunk like a sedan or coupé). They combine the fun of coupés and sedans with the ultimate SUV.
A station wagon (car in English) is a hatchback-like car with a lower rear window and more space for passengers and luggage.
A delivery truck with a separate cabinet and cargo area on the ladder frame. The warehouse is called a "bed".
The sedan (saloon in British English) is a car with a sloping rear window and a separate four-door trunk.
The coupé (coupe in American English) is similar to a sedan, but usually has only two doors and is considered sportier than a sedan.
An SUV (sport utility car) is a rough car with passenger space and integrated equipment (such as rear wheels, station cars, and vans). SUVs are very popular because of their usefulness.
A van is a large box-shaped vehicle designed to carry more passengers or luggage. There are many sizes of bakkies, such as minivans, for families.
Set Power
To make the car move, there must be power to open the wheels. This energy can be the chemical energy in gasoline or the electrical energy of a battery. How fast an engine or car can send power to the wheels, and how much power is sent, is called engine power. Car power is usually measured in kilowatts or horsepower.
Fuel
As of 2019, most cars burn fuel to make an internal combustion engine (sometimes called a "motor"). The power from the engine then goes to the wheels via transmission, which has a set of gears that can move the car faster or slower. The most common fuel is gasoline, called "gasoline" or "gas" in American English.
The cleanest cars are electric cars. It is usually connected to an electrical outlet or charging station and stores the battery at the bottom of the car. Electricity and drive an electric car, turning the wheels. Some electric cars have 2 cars: one in front, one in the back. A few have 4 engines (one per wheel). [5]
The first recorded cars were actually wind turbines attached to chariots in the late 18th century. Steam engines were heavy, making the chariots slow and difficult to control. Better and faster wet cars became common in the late 19th century.
Other power sources Edit
Some vehicles burn diesel fuel, which is used in large trucks and buses, and a few use wood gas. In some countries, such as Brazil and Sweden, a combination of ethanol and gasoline, called "gasohol" in Brazil and "E85" in Sweden, is used as automotive fuel. Other fuels include propane, natural gas, compressed air and ethanol (from plants). There are cars designed to use more than one type of fuel - these are called "flex-fuel" and are rare.
Few cars generate electricity from hydrogen fuel cells (such as Honda Clarity). As of 2019, most of the hydrogen people use comes from burning fossil fuels, but scientists and engineers are trying to make hydrogen in renewable energy cheaper and easier to use.
A car that uses solar energy
Some cars even use solar cells for their electricity, but they do not work very well. There is an annual race where people are trying to design a car that can last a very long time and go very far with the power of the sun alone.
There is also a car that uses both an engine and an electric motor. This is called a combined electric car; for example Toyota Prius.
Regenerative Brakes Edit
All vehicles have interlocking brakes to stop the car immediately in an emergency or to roll over when parked. Electric cars also have regenerative brakes, which slow down the car by converting the power in its motion back to electricity, like an electric car that works differently. So renewal means that electricity is recycled.
Cars are faster than walking or cycling if you travel long distances. They can carry more than one person and a large amount of luggage. Depending on the local quality of public transportation, they can be faster and easier than using buses, bicycles or trains, and often go where public transport can. Four-wheel-drive vehicles "off road" are best suited for access to other wheeled vehicles due to bad roads or poor terrain. However, they are more expensive and burn more fuel, and there are many places they can go.
Many vehicles lock people and property in a closed room with a roof, doors, and windows, thus protecting the climate. Modern cars offer extra protection in the event of a collision, as they add safety features such as seat belts, airbags, bumps and side protection that may or may not be available in two-wheeled or lightweight 3-wheeled vehicles, or more buses.
Buying and using a car requires a lot of money, especially in new high-end cars. There are things you have to pay for - the the vehicle itself, petrol, parts (for example, tires), maintenance, repairs, insurance to cover the cost of crash or theft, parking costs, and toll roads and any taxes or license fees charged by the government.
When cars crash, they can injure and injure people, and human life is far more important than keeping the car intact. When too many vehicles try to move in the same direction, traffic jams slow them down. Cars can cause air pollution if they are used extensively in a small area such as the city, and the combined pollution of the world's vehicles is partly blamed for climate change. Many places where people live close together have public transportation such as buses, trains, trams and subway. This can help people to travel much faster and cheaper than driving where traffic congestion is a problem. Some of these problems can be minimized, for example by carpooling, which puts many people together in one car.
Traffic jams and accidents can be dangerous for some road users, for example cyclists or pedestrians, especially in an old city built with few cars. Some 20th-century cities were built for transportation. This can cause other problems, such as heavy pollution and traffic congestion, as few, if any, pedestrians. Communities are divided and divided by highways. Pedestrians are at risk when there are too few pedestrian bridges, narrow road bridges or other special crossings.
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