Definition of kinetic energy in US English:

kinetic energy

noun

Physics
  • Energy which a body possesses by virtue of being in motion.

    ‘energy above that needed to ionize the molecule is carried away as kinetic energy of the electron ejected’
    Compare with potential energy
    count noun ‘particles with low kinetic energies’
    • ‘The molecules convert their kinetic energy into potential energy when they rise into the air just like the ball did.’
    • ‘A moving particle will carry with it the energy of its motion, which the physicists call kinetic energy.’
    • ‘The energy flow resulting from transforming kinetic energy into potential energy is heat.’
    • ‘One way energy is conserved is through the transformation of an object's potential energy into kinetic energy.’
    • ‘By lowering the centre of gravity, some potential energy is removed from the system and converted to kinetic energy - the energy of motion.’

Pronunciation

kinetic energy

/kəˈnedik ˈenərjē/