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Item NG079003: The motion energy of a book sliding across a table is transformed into thermal energy, not into a force.

A girl pushes 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 kinetic energy (motion energy) of the book?

  1. It was transformed into both a force and thermal energy.
  2. It was transformed into a force but not into thermal energy.
  3. It was transformed into thermal energy but not into a force.
  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 079003
Scale Score for Item Difficulty
(200[Easy]-800[Difficult])
529
Students Responding Correctly
Group Correct Total Percent
Overall 514 1771 29%
Grades
  4–56534919%
  6–8 251 839 30%
  9–12 198 583 34%
Gender
  Male23581129%
  Female26592029%
Primary Language
  English469161529%
  Other2911625%

View data table