Item EG054002: Water has more thermal energy than ice because the molecules of water are moving faster than the molecules of ice.

A student has a glass of water and a block of ice. Both the water in the glass and the block of ice are made up of the same number of molecules. The average speed of the molecules of the water is greater than the average speed of the molecules of the block of ice. Which has more thermal energy and why?

  1. The ice has more thermal energy because it is a solid and the water is a liquid.
  2. The water has more thermal energy because the ice has no thermal energy, but the water does.
  3. The water has more thermal energy because the molecules of the water are moving faster than the molecules of the ice.
  4. The water and the ice have the same amount of thermal energy because they are different forms of the same substance.

Distribution of Responses

Chart showing distrubtion of responses for Item EG054002

Percent of students responding correctly

Overall52%
Grades 6–850%
Grades 9–1255%
Male53%
Female51%
Primary Language is English53%
Primary Language is not English42%

View data table