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The magnetic materials which can magnetise and de-magnetise easily are called "soft magnetic materials"
example:-ferrites,iron-cobalt alloy.
The magnetic materials which cannot magnetise and de-magnetise easily are called "hard magnetic materials"
example:-aluminium(al),nickel-cobalt alloy.
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What are the differences between soft and hard materials in terms of their properties and applications?
Soft materials are flexible and deform easily under pressure, while hard materials are rigid and do not deform easily. Soft materials are often used for cushioning, insulation, and comfort, while hard materials are used for structural support, cutting tools, and durability.
Why does something that is soft absorb more sound than something that is hard?
Soft materials have a porous structure that allows sound waves to penetrate and get trapped inside, reducing the sound's ability to bounce or reflect. In contrast, hard materials reflect sound waves, causing them to bounce off surfaces and remain in the environment. This difference in how sound waves interact with soft and hard materials contributes to the soft material's better sound absorption properties.
What hard or soft materials would be best for a room where you watch TV or listen to music?
Some soft cushions may help make you comfortable.
Are shoes hard or soft goods?
Shoes are typically categorized as hard goods because they are durable, physical products made from materials like leather, rubber, or synthetic fabrics. However, they can also be considered soft goods if they contain soft materials, such as canvas or fabric components. Overall, the classification can depend on the specific materials used and the context in which they're discussed.
Is sulfur hard or soft?
Sulfur is a brittle solid at room temperature, so it is not typically classified as either hard or soft. It has a low hardness compared to many metals and minerals, but it is not malleable like softer materials such as wax.
What are some examples of soft brittle hard materials?
iron and copper are hard materials .
What is the difference between hard and soft material?
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.
What is the difference between hard and soft magnetic materials?
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.
Is brown soft or hard?
Hard
Why are some materials hard and others soft?
The hardness of a material is determined by the strength of its atomic bonds. Materials with strong atomic bonds, like diamonds, are hard because it takes a lot of force to break those bonds. In contrast, materials with weaker atomic bonds, like rubber, are soft because the bonds can be easily deformed or broken with less force.
Hard grinding wheel is prefered for soft and soft grinding wheel is prefered for hard work piece why?
It depends on the forces that would be applied on to the workpiece, a soft grinding wheel has more wear, and hence would not be affected much by hard materials. If we tried to use a hard grinding wheel, there would be large forces and hence a large wear on the wheel.
Is energy soft or hard g?
Energy is not considered hard or soft as it is a fundamental property of matter and can exist in various forms such as kinetic, potential, thermal, etc. The hardness or softness does not apply to energy itself but can be used to describe materials or objects based on their physical properties.
