A tensile test is a method used to determine the strength and ductility of materials, such as metals and plastics. During the test, a sample is pulled apart until it breaks, measuring how much force is required to stretch the material. This helps engineers understand how materials will behave under tension in real-world applications. The results of a tensile test provide important data, including the material's ultimate tensile strength, yield strength, and elongation. These properties are crucial for selecting materials in construction, manufacturing, and other industries where strength and flexibility are essential.