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Item EG041004: For two identical rubber bands, the rubber band that is stretched more has more elastic energy.

A student has two identical rubber bands. She stretches each rubber band around two pegs so that one rubber band is stretched a little bit and the other rubber band is stretched a lot.

When the rubber bands are stretched, which rubber band has more elastic potential energy?

  1. The rubber band that is stretched a little has more elastic potential energy.
  2. The rubber band that is stretched a lot has more elastic potential energy.
  3. The rubber bands have the same amount of elastic potential energy no matter how much they are stretched.
  4. Neither rubber band has any elastic potential energy.
Distribution of responses
Answer Choice
Overall
Grades
Gender
Primary Language
 
n = 1885
4–5
n = 338
6–8
n = 773
9–12
n = 774
Male
n = 909
Female
n = 935
English
n = 1718
Other
n = 121
A. The rubber band that is stretched a little has more elastic potential energy. 18%18% 17% 20% 17% 20% 18% 18%
B. The rubber band that is stretched a lot has more elastic potential energy. 66%68% 66% 64% 66% 64% 66% 64%
C. The rubber bands have the same amount of elastic potential energy no matter how much they are stretched. 13%9% 13% 14% 13% 13% 12% 17%
D. Neither rubber band has any elastic potential energy. 3%4% 4% 3% 4% 3% 4% 0%