El principio de Arquímedes o 🚢 ¿Por qué flotan los barcos?

The video explores Archimedes' principle, explaining why objects float or sink based on buoyancy and density. It recounts the legend of Archimedes' discovery in the bathtub and provides a mathematical explanation of the principle. The video includes a practical experiment with plasticine to demonstrate how shape affects buoyancy, emphasizing the importance of density over weight in floating objects.

What was the main problem Archimedes was asked to solve by the king?

• To calculate the weight of a coin.

• To measure the density of water.

• To design a new type of ship.

• To find out if the crown was made of pure gold.

What did Archimedes discover when he got into the bathtub?

• The water was denser than air.

• The water level remained unchanged.

• His body displaced an amount of water equal to its volume.

• The water temperature was too high.

How does the density of salt water compare to fresh water?

• Salt water density varies with temperature.

• Salt water is denser than fresh water.

• Salt water is less dense than fresh water.

• Salt water and fresh water have the same density.

Why does a ship float while a coin sinks?

• A coin is denser than water, while a ship is not.

• A ship displaces more water due to its shape, reducing its overall density.

• A ship is made of lighter materials than a coin.

• A ship is hollow, while a coin is solid.

What is the formula for calculating the thrust experienced by an object in a fluid?

• Thrust = mass of object / volume of fluid

• Thrust = density of fluid x gravity x displaced volume

• Thrust = volume of object x density of object

• Thrust = weight of object x density of fluid

What happens to an object if its weight is equal to the thrust in a fluid?

• It will oscillate up and down.

• It will float to the surface.

• It will sink to the bottom.

• It will remain suspended in the fluid.

How can a material denser than water be made to float?

• By adding more material to it.

• By shaping it to displace more water.

• By decreasing its volume.

• By increasing its weight.