A paper clip can float on the surface of a liquid because the molecules
A)in the interior of the liquid have a net inward attraction.
B)in the interior of the liquid have a net outward attraction.
C)at the surface of the liquid have a net inward attraction.
D)at the surface of the liquid have a net outward attraction.

Question

Quizplus · Accepted Answer

The molecules at the surface of a liquid have a net inward attraction, which creates a phenomenon known as surface tension. This surface tension allows objects with a lower density, like a paper clip, to float on the surface of the liquid if they do not break the surface tension.

A Paper Clip Can Float on the Surface of a Liquid