Why does the Cartesian diver float at first?
As the water level rises in the diver, it becomes less buoyant and the diver sinks. As you release the pressure on the bottle, the compressed air expands and forces the water back out. The diver floats to the top of the bottle because now it is more buoyant.
What gas law is the Cartesian Diver?
ideal gas law: PV = nRT Where P = pressure, V = volume, n = number of moles of gas, R = universal gas constant, and T = temperature The pressure in the bottle is increased, therefore the volume of air trapped inside the Cartesian diver decreases.
How does the Cartesian Diver represent Boyle’s Law?
Boyle’s Law describes the relationship between pressure and volume. Increasing pressure on a gas will decrease its volume. When the sides of the diver are pressed, the water is forced into the dropper, decreasing the volume of air in the dropper. This makes it more massive and dense, causing it to sink.
What is the dependent variable in the Cartesian diver experiment?
The independent variable in this lab is pressure ● The dependent variable is buoyancy of the cartesian diver.
Does the temperature of the water affect the density of the ketchup packet?
Density deals with the amount of mass an object has. Adding salt to the water adjusted the water’s density to get the ketchup to float. there is a little bubble inside of the ketchup packet. As we know bubbles float, and the bubble in the ketchup sometimes keeps the heavy packet from sinking.
What causes the tube to sink and rise?
As the container is squeezed, the volume of air in the test tube decreases. The body sinks when the buoyant force becomes less than the gravitational force. Squeezing the container causes water to flow into the tube, which compresses the air, so the average density of the diver increases.
How do submarines sink if they are full of air?
In order to control buoyancy, the submarine relies on special tanks that can be filled with water or air. To return to the surface, the tanks are filled with air. This makes the submarine denser than the surrounding water, which causes it to sink.
Do submarines run out of air?
As long as the reactor is running, a nuclear-powered submarine will NEVER run out of air. As long as it can raise a snorkel mast and ventilate, a diesel or AIP-powered submarine will NEVER run out of air.
How long are submarines underwater?
three months
How thick is a submarine hull?
The external hull, which actually forms the shape of submarine, is called the outer hull, casing or light hull. This term is especially appropriate for Russian submarine construction, where the light hull is usually made of steel that is only 2 to 4 millimeters thick, as it has the same pressure on both sides.
Can you die in a submarine?
In World War II, many submarines went down, some with crews terrorized through relentless depth-charge attacks. Physicians say that some of the ways that men die on submarines — like drowning or gas poisoning — are exceptionally painful. Some former crew members said one enlisted man lost control and began screaming.
Do submarines stink?
Submarines develop a funk that is a mixture of many things. Combine, the smell of hot grease and hydraulic oil with that of diesel fuel, amine ( used to remove CO2, which smells like ammonia), with the combined sweat of a 100 persons.
What does it smell like on a submarine?
They have a unique smell of lube oil and a chemical called monoethanolamine, which is used to clean the air. If you don’t shower after returning to port, people familiar with the smell can tell you were recently aboard a submarine.