Question

At last, it's time to go diving! You load your stuff into the boat and head to an offshore dive site.

A. What type of device does the boat use to move? Describe this in terms of the laws of thermodynamics. You might want to draw a diagram of how this device operates.

Answer 1

A. The boat uses an engine which provides it the kinetic energy to move. The engine uses gasoline, or manual paddles, push pole or propeller.  
B. In terms of thermodynamics law- for every action, there is an equal and opposite reaction. In this case, the thrust causes movement in case of the boat.