1. A jet plane rapidly accelerates on the runway.
A. chemical to kinetic.
2. A walnut falls to the ground from a high tree branch.
A. gravitational potential energy to kinetic
3. A placekicker sends a football through the uprights of a goalpost.
A. mechanical to kinetic.
4. A base runner slides safely into third base.
A. mechanical to thermal.
5. A nuclear powered submarine transports its crew from New Orleans to Mobile.
A. chemical energy to mechanical and thermal energy
