kinetic energy
US /kɪˌnet.ɪk ˈen.ɚ.dʒi/
UK /kɪˌnet.ɪk ˈen.ɚ.dʒi/

1.
energy that a body possesses by virtue of being in motion
:
•
The car's kinetic energy increased as it sped up.
•
A falling object converts potential energy into kinetic energy.