1. Pick a mechanical system, Such as a bike being paddled down the mountainside or a bowling ball rolling down the lane toward the pins. Describe how energy is changing from one type of energy to another as the object moved and how are you gaining or loosing your nervy through inputs or outputs of the system. Tell me what inputs of energy are in the system you choose, and what are the outputs in the Austen. Explain with your own words. The subject is science not History I just can’t find SCIENCE!