Item AM076002: The molecules of cold water move slower than the molecules of hot water.

How do the molecules of cold water differ from the molecules of hot water?

  1. The molecules of cold water move faster than the molecules of hot water.
  2. The molecules of cold water move slower than the molecules of hot water.
  3. The molecules of cold water move at the same speed as the molecules of hot water.
  4. It is not possible to say anything about how the molecules differ without more information.

Statistics for this item are available in the Original Project.

Notes
See NGSS performance expectation MS-PS1-4: Develop a model that predicts and describes changes in particle motion, temperature, and state of a pure substance when thermal energy is added or removed.