Energía térmica

The video explains the process of metal transformation in a foundry, where metal is heated until it becomes liquid and can be poured into molds. It covers the transfer of thermal energy from a hot source to cold metal, causing molecules to vibrate and change the metal's state from solid to liquid. Once poured into molds, the metal cools, transferring heat to the surrounding air, and solidifies into the mold's shape. This process demonstrates how thermal energy is used to change the shape of metal.

What is the primary purpose of turning metal into liquid in a foundry?

• To change its color

• To make it easier to transport

• To increase its weight

• To pour it into molds of various shapes

How does thermal energy affect metal molecules?

• It makes them change color

• It causes them to vibrate faster

• It makes them disappear

• It cools them down

What happens to metal when enough heat energy is transferred to it?

• It becomes flexible and then melts

• It changes from a liquid to a gas

• It changes color

• It becomes colder

What occurs when the liquid metal is poured into a mold and cooled?

• It evaporates

• It becomes gaseous

• It changes color

• It solidifies into the shape of the mold

During the cooling process, what happens to the metal molecules?

• They change color

• They vibrate faster

• They slow down

• They disappear