Question

a balance uses small metal weights of known mass to determine the mass of a substance. where would a balance not function correctly? a. in a vacuum on earth b. on the moons surface c. on the earths highest mountain d. in a zero gravity environment

Explanation:

A balance works by comparing the gravitational force (weight) of the object and the weights. In a zero - gravity environment, there is no gravitational force acting on either the object or the weights. So the balance, which relies on the effect of gravity to compare masses (by comparing weights), will not function correctly. In a vacuum on Earth, on the Moon's surface, and on Earth's highest mountain, there is still gravity (even if the strength of gravity varies slightly on the Moon or on the highest mountain, or there is no air resistance in a vacuum), so the balance can still function by comparing the weights (which are proportional to mass in a given gravitational field).

Answer:

D. in a zero gravity environment