Mechanical force is a push or pull that can cause an object to move, change its speed, or alter its shape. It is a fundamental concept in physics and is often categorized into two types: contact forces, which occur when objects touch each other, and non-contact forces, such as gravity and magnetism, which act at a distance. Mechanical force is measured in units called Newtons, named after the scientist Isaac Newton. Understanding mechanical force is essential in various fields, including engineering, where it helps in designing structures and machines that can withstand different forces during operation.