Final answer:
A forklift is an example of a motorized materials handling device, used to lift and move materials over short distances in places such as warehouses.
Step-by-step explanation:
An example of a motorized materials handling device is a forklift. A forklift is a powered industrial truck used to lift and move materials over short distances. Unlike hand trucks, pallet jacks, or carts, forklifts are motorized and can lift heavy loads to varying heights.
Using the given reference information, we can consider a scenario where a forklift might be used in a warehouse: A 10 kg box is lifted 2 m off the floor and placed on a frictionless conveyor to be transported across the warehouse. This could be an instance where a forklift is needed if the box is one of many that need to be moved quickly and efficiently. Similarly, heavy machinery such as backhoes, which use hydraulic and mechanical lever systems, are also examples of motorized devices designed to handle significant loads.