A metal block is a solid piece of metal that has a defined shape and volume. It can be made from various metals, such as steel, aluminum, or copper, and is often used in manufacturing and construction. Metal blocks can be cut, shaped, or welded to create different components for machinery, tools, or structures. These blocks are characterized by their density and strength, making them suitable for applications that require durability. They can also be used in educational settings to demonstrate principles of physics, such as mass, gravity, and density.