Examples of the Archemedes Principle
Density measures the heaviness of an object. If an object sinks, this means the object is more dense than water, and if it floats, it is less dense than water. This principle applies to all fluids, meaning a liquid or a gas. A fluid, is a substance as liquid or gas, that is capable of floating, and changes its shape when a force is tending to change it. some examples are boats and hot air ballon The boats does this: the weight of the water that is surrounding the ship weighs the same as the ship itself, so the water applies a buoyant force up on the ship with this much force. This is why the ship can float through water, no matter how much carriage it has. The hot air balloon starts to fly as the density of the warmer air inside the balloon is less than the cooler air outside the balloon. The density of the balloon and the basket make the air balloon go up and down.