In general, the size of the splash created when an object is dropped into water can be influenced by several factors, including the object's mass, shape, and surface area. However, when comparing objects of the same size, the mass plays a crucial role in determining the impact.
Assuming all objects are identical in size and shape, the one with the greatest mass will likely create the largest splash upon impact. This is because a more massive object will have a greater weight, resulting in a higher force upon hitting the water. The increased force can displace more water, leading to a larger splash.
Therefore, among the objects ranked from 1 to 4, the object that corresponds to the largest splash (likely ranked 4) would most likely be the one with the greatest mass.