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 microscopic level led to the visible changes in the properties of the metal

the kinetic energy of the particles decreased
the potential energy of the particles decreased
the individual temperature of the particles increased
the average speed of the particles increased

The individual temperature of the particles increased.

which statement best describes heat

heat flows from cold to hot and is a form of thermal energy
heat flows from hot to cold and is the transfer of thermal energy
heat flows from cold to hot and is the transfer of thermal energy
heat flows from hot to cold and is a form of thermal energy

Heat flows from hot to cold and is the transfer of thermal energy.

what is thermal energy

a distance between particles and their freedom to move around
the measurement of energy in an object due to position, conduction, or chemical composition
the total kinetic energy of all particles in a substance
a material that is a conductor of heat

Thermal energy is the total kinetic energy of all particles in a substance.

The correct answer is:

The individual temperature of the particles increased.

When a blacksmith strikes a piece of metal with a hammer, the kinetic energy of the particles is actually increasing due to the force applied. However, the visible changes in the properties of the metal are primarily caused by the increase in temperature. As the blacksmith strikes the metal, kinetic energy is transferred to the particles, causing them to vibrate and collide with each other more vigorously. This increased movement and collisions between particles lead to an increase in temperature. As the temperature increases, the metal begins to glow and becomes more malleable, allowing the blacksmith to shape it more easily.

The visible changes in the properties of the metal occur due to changes on a microscopic level. When the blacksmith strikes the metal with a hammer repeatedly, the kinetic energy of the particles within the metal increases. This increase in kinetic energy leads to an increase in the temperature of the metal, causing it to heat up.

As the temperature rises, the individual temperature of the particles within the metal also increases. This increase in temperature causes the particles to vibrate more vigorously, which in turn leads to an increase in their average speed.

As the average speed of the particles increases, their kinetic energy rises further, causing the metal to heat up even more. At a sufficiently high temperature, the metal begins to glow, indicating that it has reached a state where it is highly malleable.

Therefore, in this scenario, the individual temperature of the particles increased, and the average speed of the particles increased. These changes on a microscopic level ultimately led to the visible changes in the properties of the metal, such as the increase in malleability and the glowing appearance.