Respuesta :

Answer:

The average amount of motion of atoms and molecules of a substance measured by:

D. Temperature

Explanation:

  • The molecules of a substance are always in motion.
  • The motion is due to the energy present in them.
  • The energy present in these molecules is the kinetic energy.
  • This kinetic energy is measured by calculating the total  heat energy of the substance.
  • More the heat energy greater is the molecular motion.
  • Since heat can be measured by measuring the temperature.
  • Measuring the temperature of a body will give the idea of amount of heat present in the body.
  • Thus , on measuring the temperature we can measure the average amount of motion in atoms and molecules of a substance.

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