A blacksmith strikes a piece of metal with a hammer repeatedly. The metal slowly begins to glow as the temperature increases, and the metal becomes more malleable. Which changes on a microscopic level led to the visible changes in the properties of the metal?
The average temperature of the particles increased
The potential energy of the particles decreased
The kinetic energy of the particles decreased
The average speed of the particles increased
I did it for the boys the answers are
1. Temperature
2.The average speed of the particles increased
3.Heat flows from hot to cold and is the transfer of thermal energy
4.The molecules will have more potential energy because of their arrangement
nic is right
Thanks nic
Yes thanks nic your 100% correct I got 4/4 Anwsers are below!
1) Temperature
2) The average speed of the particles increased.
3) Heat flows from hot to cold and is the transfer of thermal energy.
4) The molecules will have more potential energy because of their freedom to move
The 3rd question answer is 'Heat flows from hot to cold and is the transfer of thermal energy.' I chose 'Heat flows from cold to hot and is the transfer of thermal energy.' by mistake so make sure you read what you've chosen just to make sure you have it right. But yes, Nic is right on all of the questions, thank you!
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123 is correct for Nic, but the 4th question I got wrong, it is the total kinetic energy of all particles in a substance.
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The changes on a microscopic level that led to the visible changes in the properties of the metal are that the average temperature of the particles increased and the average speed of the particles increased.
When the blacksmith strikes the piece of metal repeatedly with a hammer, it causes the metal to undergo plastic deformation, meaning it changes shape without breaking. As the hammer hits the metal, it transfers kinetic energy to the metal particles. This increased kinetic energy causes the particles to vibrate and move more rapidly.
The increased kinetic energy of the particles leads to an increase in the average temperature of the metal. This is because temperature is a measure of the average kinetic energy of the particles in a substance. As the particles gain kinetic energy, they move more vigorously and collide with each other more frequently, increasing their overall temperature.
Additionally, the increased average speed of the particles also contributes to the metal becoming more malleable. When the particles move faster, they are more likely to overcome the forces holding them in place and slide past each other. This allows the metal to flow and change shape more easily under the hammer blows, making it more malleable.
Therefore, both the increase in average temperature and average speed of the particles during the hammering process contribute to the visible changes in the properties of the metal.