Hard magnets are those which require a high magnetic field so as to be magnetized.
Soft magnets are those which acquire high magnetic flux when a little magnetic force is applied onto them.
Plastic can be soft or hard, depending on its composition and processing. Some plastics are engineered to be flexible and soft, while others are rigid and hard.
It is a limestone, hard.
Its hard
well It Is hard because all rocks are hard
Platypus eggs are soft and leathery, rather than hard-shelled.
Soft magnets are easily magnetized and demagnetized, while hard magnets retain their magnetism once magnetized. Soft magnets have low coercivity and high permeability, making them suitable for applications like electromagnets. Hard magnets have high coercivity and are used in applications where a strong, lasting magnetic field is needed, such as in permanent magnets.
Materials which retain their magnetism and are difficult to demagnetize are called hard magnetic materials. These materials retain their magnetism even after the removal of the applied magnetic field. Hence these materials are used for making permanent magnets. In permanent magnets the movement of the domain wall is prevented. They are prepared by heating the magnetic materials to the required temperature and then quenching them. Impurities increase the strength of hard magnetic materials. Soft magnetic materials are easy to magnetize and demagnetize. These materials are used for making temporary magnets. The domain wall movement is easy. Hence they are easy to magnetize. By annealing the cold worked material, the dislocation density is reduced and the domain wall movement is made easier. Soft magnetic materials should not possess any void and its structure should be homogeneous so that the materials are not affected by impurities.
Hard
temporary magnets Incorrect, it's electromagnetic.
Soft iron is not used for making permanent magnets; instead, it is used as a temporary magnet due to its high magnetic permeability and ability to be easily magnetized/demagnetized. Permanent magnets are typically made from hard magnetic materials like neodymium or ferrite, which can retain their magnetism for a long time.
In magnetic terms, "hard" and "soft" refer to the magnetic properties of materials. Hard magnetic materials, such as permanent magnets, retain significant magnetization and are difficult to demagnetize, making them suitable for applications requiring stable magnetic fields. In contrast, soft magnetic materials, like iron, can be easily magnetized and demagnetized, allowing them to efficiently conduct magnetic fields and are often used in electromagnetic applications.
it is hard and sometimes soft
hard
soft you can bend and hard you can not
Hard magnets are permanent magnets that do not require electricity to retain their magnetism and are not easily demagnetized. They are magnetically charged naturally and can be artificially, too.
Electromagnets are temporary magnets made of iron usually that are created by passing a current through a wire wrapped around the iron. There are also ways of making temporary magnets out of ordinary iron objects that can later be demagnetized. I am not wise in the ways of these latter type of temporary magnets.
"Treated wood can be soft or hard." But, generally what is bought from a lumberyard is soft.