Stephen and clint have been friends since they were toddlers because their mothers were friends. both boys have always had similar interests and had about the same body size. the boys are now 15 and clint is 5 foot tall, but stephen has shot up in height to 5 foot 10 inches. because of his rapid growth in height, stephen probably has a better than clint.

Self-concept

Explanation:

Self-concept is defined as the believes, characteristics,capabilities and value an individual holds for self.It defines the knowledge a person has about his/her own-self.

According to the situation mentioned in the question, Stephen can persist better self concept as compared with Clint because he had rapid growth than him.This situation induces more self consciousness and self evaluation in Stephen's case than Clint because adolescents tend to focus more on unique attributes through believes.

~kinetic ~potential

explanation:

kinetic and potential energies would be types of mechanical energies.