"Falling objects" refers to any objects that are moving downward due to the force of gravity. These objects are no longer being supported and are dropping towards the ground or another surface. Full definition
You can even make a claim for damage caused by falling objects like a tree. (insurancequotes.com)
Comprehensive insurance covers some damage not relating to a collision, such as damage from falling objects, fire, some natural disasters, and vandalism. (policygenius.com)
Collision is set aside for accident related loss, while comprehensive deals with losses from sources such as falling objects, explosion, fire, theft, and vandalism. (carinsurancequote.net)