The correct option that measures the average kinetic energy of the particles in a substance is temperature.
Which option is a measure of the average kinetic energy of the particles in a substance?
phase
thermal energy
heat
temperature
7 answers
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?
The kinetic energy of the particles decreased.
The average speed of the particles increased.
The potential energy of the particles decreased.
The individual temperature of the particles increased.
The kinetic energy of the particles decreased.
The average speed of the particles increased.
The potential energy of the particles decreased.
The individual temperature of the particles increased.
The correct answer is the average speed of the particles increased.
As the blacksmith strikes the metal, energy is transferred to the particles, causing them to move faster (increased kinetic energy), which in turn raises the temperature of the metal. This increased motion (average speed) contributes to the malleability of the metal as the atomic structure allows for deformation.
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 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 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.
Heat flows from cold to hot and is the transfer of thermal energy.
The statement that best describes heat is: Heat flows from hot to cold and is the transfer of thermal energy.
What is thermal energy?
the total kinetic energy of all particles in a substance
the distance between particles and their freedom to move around
a material that is a conductor of heat
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 distance between particles and their freedom to move around
a material that is a conductor of heat
the measurement of energy in an object due to position, conduction, or chemical composition
The correct definition of thermal energy is: the total kinetic energy of all particles in a substance.
1 answer