The Izod Test is a standardized method used to measure the impact resistance of materials, particularly plastics and metals. It involves striking a notched specimen with a swinging pendulum to determine how much energy is absorbed before breaking. The results help assess the toughness of the material, which is crucial for applications where durability is essential. This test is commonly used in industries such as automotive and construction, where materials must withstand sudden impacts. The Izod Test provides valuable data that aids engineers and designers in selecting appropriate materials for various products and structures.