Magnetic Particle Inspection Level 2 Practice Exam

The phenomenon of matter attracting other matter is associated with which concept?

1. Field strength

2. Magnetism

3. Coercive force

4. Pole strength

The correct answer is: Magnetism

The phenomenon of matter attracting other matter is fundamentally associated with magnetism. Magnetism arises from the motion of electric charges and the intrinsic magnetic moments of particles, which causes materials to exhibit attractive or repulsive forces when they are in the presence of a magnetic field. In general, magnetism is a crucial physical effect that enables a range of applications, particularly in non-destructive testing methods such as Magnetic Particle Inspection. Field strength refers to the intensity of a magnetic field in a given area but does not directly pertain to the attraction of matter. Coercive force describes the ability of a material to withstand an external magnetic field without becoming demagnetized, which is more about how materials respond to magnetism rather than the attraction itself. Pole strength relates to the strength of magnetic poles, which, while contributing to the magnetic effects, does not capture the broader phenomenon of attraction between different magnetic materials. Therefore, magnetism is the primary concept that encompasses the attraction between matter, making it the correct answer.