"Physical dimensions" refer to the measurable attributes of an object, such as its length, width, height, and volume. These dimensions help us understand the size and shape of various items, from everyday objects like a book or a table to larger structures like a building or a bridge. Knowing the physical dimensions is essential for design, construction, and fitting items into spaces. In science, physical dimensions also play a crucial role in understanding the properties of materials. For example, the density of a substance can be calculated using its mass and volume, while the dimensions of a container determine how much liquid it can hold. Understanding these concepts helps in various fields, including engineering and architecture.