A student is investigating the transfer of energy between potential and kinetic. The student observes a roller coaster at four locations on the track and creates a graph based on her observations.
What conclusion can be made based on the graph?
a
Kinetic and potential energy change, but total energy stays the same.
b
Potential energy is increased, but kinetic energy stays the same.
c
Potential energy is destroyed during a roller coaster ride.
d
Kinetic energy is created during a roller coaster ride.