Which materials are not attracted by the magnetic field around a magnet?

Nonferrous materials are those that typically do not contain significant amounts of iron or are entirely free of it. Because of their composition, nonferrous materials such as aluminum, copper, brass, and lead are not attracted to magnets. This characteristic is crucial in various applications, such as electrical wiring and components, where nonferrous materials are often preferred due to their conductive properties without the magnetic interference present in ferrous materials.

In contrast, ferrous materials (which contain iron) are attracted to magnetic fields. Additionally, magnetic metals encompass materials that can be magnetized or are attracted to magnets, while electromagnetic materials refer to substances that can become magnetized under the influence of an electric current. Therefore, the attributes of nonferrous materials distinguish them as the correct answer to the question regarding which materials are not influenced by a magnetic field.