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Question
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? (1 point)
Responses
The potential energy of the particles decreased.
The potential energy of the particles decreased.
The average speed of the particles increased.
The average speed of the particles increased.
The individual temperature of the particles increased.
The individual temperature of the particles increased.
The kinetic energy of the particles decreased.
1 answer
The correct answer is:
The average speed of the particles increased.
As the blacksmith strikes the metal, the mechanical energy from the hammer impacts the metal, increasing the kinetic energy of the particles within it. This increase in kinetic energy corresponds to an increase in the average speed of the particles, leading to a rise in temperature and making the metal more malleable.
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