Question

What units can measure weight?

Answer 1

Technically, Newtons, `"N"`, or a `"kg"cdot"m/s"^2`.

Explanation:

A weight is a force.
Newtons is a unit of force.

Mass in a gravitational field creates a force, but mass by itself is not a force.

`vecF_g = mvecg`, `" "vecg = -"9.80665 m/s"^2`

Mass is often used (technically incorrectly) as an indirect measure of weight. Mass is a measure of the amount of matter in a substance, not a measure of force.

Mass is more accurately a measure of inertia, `I prop mr^2` (where `r` is the distance to the axis of rotation).