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Item NG022003: When water that is 40ºF is poured into a cup that is 70ºF, thermal energy is transferred from the cup to the water until they reach the same temperature.

The temperature of a plastic cup is 70ºF.  It is filled with water that is 40ºF.  Which of the following describes how thermal energy is transferred?

  1. Thermal energy is transferred from the water to the cup until they are both at 45ºF.
  2. Thermal energy is transferred from the cup to the water until they are both at 45ºF.
  3. Thermal energy is transferred from the cup to the water until the cup is at 60ºF and the water is at 50ºF.
  4. No thermal energy is transferred between the cup and the water, so the cup will stay at 70ºF and the water will stay at 40ºF.
Distribution of Responses
Chart showing distrubtion of responses for Item 022003
Students Responding Correctly
Group Correct Total Percent
Overall 1044 3015 35%
Grades
  6–8 564 1843 31%
  9–12 478 1162 41%
Gender
  Male496144734%
  Female531150935%
Primary Language
  English944270935%
  Other7322233%

View data table