Assertion: gravity | /r/HasProperty | exerted on that material
Facets:
value: in a gravitational field
type: LOCATION
Source sentences:
text: Mass is a measure of how much material is in an object, but weight is a measure of the gravitational force exerted on that material in a gravitational field; thus, mass and weight are proportional to each other, with the acceleration due to gravity as the proportionality constant.