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 average speed of the particles increased.
The average speed of the particles increased.
The potential energy of the particles decreased.
The potential energy of the particles decreased.
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.
Which statement best describes heat?(1 point)
Responses
Heat flows from cold to hot 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 the transfer of thermal energy.
Heat flows from hot to cold and is the transfer of thermal energy.
Heat flows from cold to hot and is a form of thermal energy.
Heat flows from cold to hot and is a form 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?(1 point)
Responses
the distance between particles and their freedom to move around
the distance between particles and their freedom to move around
a material that is a conductor of heat
a material that is a conductor of heat
the measurement of energy in an object due to position, conduction, or chemical composition
the measurement of energy in an object due to position, conduction, or chemical composition
the total kinetic energy of all particles in a substance
the total kinetic energy of all particles in a substance
The correct answer is: The average speed of the particles increased.
The correct answer is: The individual temperature of the particles increased.
Explanation:
When a blacksmith strikes a piece of metal with a hammer repeatedly, the energy from the hammer's impact is transferred to the metal. This energy causes the particles in the metal to vibrate more rapidly, which leads to an increase in their individual temperature. As the temperature of the metal increases, the particles gain kinetic energy. This increase in kinetic energy causes the metal to glow and become more malleable.
To understand this concept, we need to know about the behavior of particles at the microscopic level. Particles in a solid material like metal are constantly vibrating due to their thermal energy. When energy is added to the system, such as through the impact from the hammer, it increases the overall kinetic energy of the particles. As a result, the particles vibrate faster, leading to an increase in temperature.
Therefore, the visible changes in the properties of the metal, such as the glow and increased malleability, are a result of the individual temperature of the metal particles increasing.