Which statement about inclined planes is false?

The statement that no work is wasted in producing heat is false because, in reality, all machines, including inclined planes, have inefficiencies that result in energy loss, such as heat. When work is done on an object, some of that energy is always converted into forms that are not useful for the intended task, primarily due to friction and other resistive forces. This is a fundamental principle in thermodynamics and mechanical systems, where energy conversion is never 100% efficient.

Understanding this concept helps in grasping how inclined planes, while reducing the amount of input force needed to lift an object, still account for energy losses in the form of heat due to friction between the object and the plane, leading to a work output that is less than work input. The other options accurately represent the nature of inclined planes and energy work in physical systems.