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Item RG120002: Energy is transferred between to magnets when there is a change in speed.

A girl moves Magnet A close to Magnet B as shown above. When Magnet A is a certain distance from Magnet B, Magnet B begins to move toward Magnet A. The speed of Magnet B increases as it moves toward Magnet A. Is energy transferred while Magnet B moves toward Magnet A?

  1. No, energy is not transferred because magnets do not transfer energy unless they touch.
  2. No, energy is not transferred because magnets do not have any energy.
  3. Yes, energy is transferred because there is a change in speed.
  4. Yes, energy is transferred, but the transfer of energy is not related to the change in speed.
Distribution of responses
Answer Choice
Overall
Grades
Gender
Primary Language
 
n = 6939
4–5
n = 1428
6–8
n = 2841
9–12
n = 2670
Male
n = 3132
Female
n = 3580
English
n = 6237
Other
n = 446
A. No, energy is not transferred because magnets do not transfer energy unless they touch. 18%20% 17% 17% 17% 18% 18% 15%
B. No, energy is not transferred because magnets do not have any energy. 14%12% 12% 16% 14% 13% 13% 16%
C. Yes, energy is transferred because there is a change in speed. 44%44% 45% 44% 45% 44% 44% 47%
D. Yes, energy is transferred, but the transfer of energy is not related to the change in speed. 24%23% 25% 24% 23% 25% 24% 22%