1. Thermal expansion
2. If metals are heated in air some can react with oxygen.
its atoms move farther and farther apart until they are so apart that it turns into a liquid
When a metal bar is heated....the particles in the area of the metal bar that is hot start vibrating.. knocking into each other and passing the heat energy on to cooler particles. The cooler end that isn't heated still has a rise in temperature just not as much as the heated area because the heat has almost been diluted.
The density will decrease because the heated metal contracts and its particles slow down.
when the ball is heated, it will pass through the unheated ring.
The metal might be copper. When copper is heated, it reacts with oxygen in air forming copper oxide which is black in colour.
Brooks metal ;)
goes bigger
it wil expand
It turns into a metal called "soda"
its resistence considerably decreases
When a fork is heated it may loose its temper what happens to the metal in this state?
The hole decreases due to metal expansion.
It heats up
i dnt know u tell me
The metal increases in hardness, a mechanical property. The process which transforms the metal hardness is called "quenching".
looses hydroxy group and forms lithium metal
They melt. Simply because they are types of metal. All types of metal melt when they are heated in fire.
When a metal bar is heated....the particles in the area of the metal bar that is hot start vibrating.. knocking into each other and passing the heat energy on to cooler particles. The cooler end that isn't heated still has a rise in temperature just not as much as the heated area because the heat has almost been diluted.