1. The problem statement, all variables and given/known data Describe the energy conversions of a device which is on a spring which is compressed then released and then spring bresks the device bounces up in the air. 2. Relevant equations ignore air resistantance 3. The attempt at a solution The device goes from strain energy to kinetic energy at the highest point it has potential energy then goes back down with kinetic energy then reaching the ground with ending of sound energy with the noise What else can I say for 7 marks?