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. The kinetic energy of the particles decreased.

1 answer

The correct response is: The average speed of the particles increased.

As the blacksmith strikes the metal, the energy from the hammer increases the kinetic energy of the particles within the metal, leading to an increase in their average speed. This increase in kinetic energy and speed results in a rise in temperature, causing the metal to glow and become more malleable.