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Item EG071002: Two pictures that weigh the same and are hung the same height above the floor have the same amount of gravitational potential energy.

A person hangs three pictures on the wall. The pictures all weigh the same. Picture 1 and Picture 2 are at the same height above the floor. Picture 3 is directly below Picture 1.

Which pictures have the same amount of gravitational potential energy?

  1. Pictures 1 and 2 have the same amount of gravitational potential energy.
  2. Pictures 1 and 3 have the same amount of gravitational potential energy.
  3. Pictures 2 and 3 have the same amount of gravitational potential energy.
  4. All of the pictures have the same amount of gravitational potential energy.
Distribution of Responses
Chart showing distrubtion of responses for Item EG071002
Scale Score for Item Difficulty
(200[Easy]-800[Difficult])
474
Students Responding Correctly
Group Correct Total Percent
Overall 1845 3266 57%
Grades
  6–8 975 1802 54%
  9–12 863 1453 59%
Gender
  Male862157055%
  Female946161958%
Primary Language
  English1634281958%
  Other15933947%

View data table