1. The problem statement, all variables and given/known data Well, this isn't really a number question, but I'm wondering if the larger the k of a spring, if that will make the energy transformation of a weight from potential energy to spring energy more efficient? 2. Relevant equations F=-kx ; energy before = energy after 3. The attempt at a solution Well, I think that the larger the k of a spring is, the more efficient the said energy transformation will be, because if the spring had a small k, then there is more work against friction... And less heat will be dissipated?