As the train went up the hill,(blank)
A)Gravitational potential energy...kinetic energy
B) Kinetic energy...Gravitational potential energy
was converted into
A)Gravitational potential energy...kinetic energy
B) Kinetic energy ... gravitational potential energy
As the train went down the hill,(blank)
A)Gravitational potential energy...kinetic energy
B) Kinetic energy... gravitational potential energy
was converted back into
A)kinetic energy ..
gravitational potential energy
B)gravitational potential energy... kinetic energy
