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 metal?

Question

1. The average speed of the particles increased
2. The kinetic energy of the particles decreased
3. The potential energy of the particles decreased
4. The individual temperature of the particles increased
Which one is right?

Answer 1

The correct answer is 4. The individual temperature of the particles increased.

When a blacksmith strikes a piece of metal with a hammer repeatedly, it imparts kinetic energy to the metal particles, causing them to vibrate and move faster. This increase in kinetic energy leads to an increase in temperature as the particles collide more frequently and with greater force. As a result, the metal slowly begins to glow, indicating that its temperature has increased significantly. The increase in temperature makes the metal more malleable, allowing the blacksmith to shape or mold it more easily.

Answer 2

The answers for the whole quick check is actually :
1. Which option is a measure of the average kinetic energy of the particles in a substance? Answer is: Temperature
2. 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? Answer is: The average speed of the particles increased.
3. Which statement best describes heat? Answer is: Heat flows from hot to cold and is the transfer of thermal energy.
4. What is thermal energy? Answer is: the total kinetic energy of all particles in a substance

These answers are for the "Matter and Temperature Quick Check."

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