Question

A small, jagged particle with a density of 1.2 g/cm3 deposits on the ground before a large, round particle with a density of 0.82 g/cm3.

Which most likely influences the rate of deposition of the jagged particle?

large size
low density
high density
irregular shape

Answer 1

High density.

Even though it's smaller and jagged, its greater density (1.2 vs 0.82 g/cm³) gives it a higher net gravitational force relative to drag, so it settles faster than the larger, less dense particle.