which statement is true?
A. magnetism depends on an object's material.
B. magnetic fields can be observed between objects that are not touching
C.as the distance between objects decreases magnetism also increases
D.a magnetic field is strongest away from the magnets poles
A. Magnetism depends on an object's material.
This statement is true. Magnetism indeed depends on an object's material. Only certain materials, such as iron, cobalt, nickel, and some of their alloys, exhibit strong magnetic properties. These materials can become magnets themselves or be attracted to magnets. Other materials may show some level of magnetic property (paramagnetism or diamagnetism), but they do not have the substantial magnetic properties seen in ferromagnetic materials.
To address the other statements:
B. Magnetic fields can be observed between objects that are not touching. This statement is also true. Magnetic fields can exist in the space around a magnet where the force of magnetism acts, which means two objects with magnetic properties do not need to be touching for their magnetic fields to interact.
C. As the distance between objects decreases, magnetism also increases. This statement is incomplete and could be misleading. Generally, the magnetic force between two magnets increases as they get closer together, but the statement should clarify that we're talking about the force and not magnetism as a property. Magnetism as a fundamental characteristic of a material does not change with distance; however, the force exerted by one magnet on another does indeed increase as the distance decreases.
D. A magnetic field is strongest away from the magnet's poles. This statement is false. A magnetic field is strongest at the poles of a magnet, where the magnetic force is concentrated. The field lines are denser at the poles, indicating a greater strength of the magnetic field. As you move away from the poles, the field becomes weaker.