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Item NG079002: The motion energy of a book sliding across a table is transformed into thermal energy, not into a force.

A girl shoves a book, and it slides across a table.  The book slows down and then stops.  As the book moves, the book and the table get a little bit warmer.  What happened to the motion energy (kinetic energy) of the book?

  1. It was transformed into a force but not into thermal energy.
  2. It was transformed into thermal energy but not into a force.
  3. It was transformed into both a force and thermal energy.
  4. It was used up and was not transformed into a force or thermal energy.
Distribution of Responses
Chart showing distrubtion of responses for Item EG079002
Students Responding Correctly
Group Correct Total Percent
Overall 1266 4440 29%
  6–8 703 2755 26%
  9–12 558 1669 33%
Primary Language

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