Which option is a measure of the average kinetic energy of the particles in a substance?
A. thermal energy
B. temperature
C. phase
D. heat
B. the total kinetic energy of all particles in a substance
B. temperature
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?
A. The kinetic energy of the particles decreased
B. The individual temperature of the particles increased.
C. The average speed of the particles increased
D. The potential energy of the particles decreased
Which statement best describes heat?
A. Heat flows from hot to cold and is a form of thermal energy
B. Heat flows from cold to hot and is the transfer of thermal energy
C. Heat flows from cold to hot and is a form of thermal energy
D. Heat flows from hot to cold and is the transfer energy
What is thermal energy?
A. a material that is a conductor of heat
B. the total kinetic energy of all particles in a substance
C. the distance between particles and their freedom to move around
D. the measurement of energy in an object due to position, conduction, or chemical composition