Assertion: ball's energy | /r/HasProperty | proportional
Facets:
value: to its height
type: OTHER
value: to the mass of the object
type: TRANSITIVE-OBJECT
Source sentences:
text: Both balls will fall at a similar speed, but because kinetic energy is proportional to the mass of the object, the heavy ball reaches Earth with more energy.
text: A ball's gravitational potential energy is proportional to its height.