What is a transportation system?
A transportation system is a network that helps people and things move from one place to another. It includes different types of vehicles like cars, buses, trains, planes, and even boats.
How does a car work?
A car has an engine and wheels. When we put fuel, like gasoline, into the car and turn it on, the engine starts and uses the fuel to create power. This power then helps the wheels move, allowing the car to drive.
How do airplanes fly?
Airplanes are able to fly because of their wings. The wings are shaped in a special way so that when the plane moves forward, the air flows faster over the top of the wings. This creates a difference in pressure, which helps lift the plane up into the air.
What are trains used for?
Trains are used to transport people and goods over long distances. They have a long chain of cars connected together and run on tracks. People can sit inside the train and enjoy the journey, while goods like food, toys, and even cars can be loaded onto the train to be taken to different places.
How do boats float on water?
Boats float on water because of a force called buoyancy. Boats are designed in a way that pushes water away from them when they are placed in it. This creates an upward force that helps keep the boat afloat. The shape of the boat's hull also helps distribute the weight evenly, making it easier for the boat to stay on the water's surface.
What is public transportation?
Public transportation refers to the different modes of transportation that are available for everyone to use. This includes buses, trains, trams, and sometimes even bicycles. Public transportation is a convenient and affordable way for people to travel to different places, especially in crowded cities where it may be difficult to drive a car or find parking.