What is the characteristic of an object that has a density less than 1g/cc in water?

An object with a density less than 1g/cc will float in water due to the principles of buoyancy. This phenomenon occurs because density is defined as mass per unit volume. When an object is placed in water, it displaces a volume of water equal to the volume of the submerged part of the object.

If the object's density is less than that of water (1g/cc), it means it is lighter for a given volume compared to water. As a result, the buoyant force acting on the object, which arises from the displaced water, is greater than the gravitational force pulling the object down. This imbalance in forces results in the object floating on the surface.

In contrast, if an object has a density greater than water, it would sink because the weight of the object would exceed the buoyant force. An object with a density exactly equal to water would neither sink nor float but remain suspended. However, dissolving in water pertains to a different physical property and is not directly related to the concept of density and buoyancy. Therefore, the correct understanding is that an object with a density less than 1g/cc will float in water.