1. You slide an object across a horizontal surface, thatobject will eventually slow down and stop. What’s causing this andwhy?
2. Name two instances in your dailylife where “conservation of energy†plays a role.
3. In a very general sense, if one object hits anotherthat is stationary, how does the collision’s type (elastic vs.inelastic) affect the energy of the objects?
4. When opening a door, it is easier to do so by pushingon the doorknob, far from the hinges. Why?
5. Why can a molecule with three atomsstore more energy than a molecule made of only oneatom?
