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?
- Pictures 1 and 2 have the same amount of gravitational potential energy.
- Pictures 1 and 3 have the same amount of gravitational potential energy.
- Pictures 2 and 3 have the same amount of gravitational potential energy.
- All of the pictures have the same amount of gravitational potential energy.
- Distribution of Responses
- 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 | |||
Male | 862 | 1570 | 55% |
Female | 946 | 1619 | 58% |
Primary Language | |||
English | 1634 | 2819 | 58% |
Other | 159 | 339 | 47% |