what is magnestism? Describe an activity to defferentiate between magnetic and non-magnetic subtanceit's
Answers
Answer:
In physics, magnetism is a force that can attract (pull closer) or repel (push away) objects that have a magnetic material like iron inside them (magnetic objects). In simpler words, it is a property of certain substances which pull closer or repel other objects.
The materials which get attracted towards a magnet are magnetic – for example, iron, nickel or cobalt. The materials which are not attracted towards a magnet are non-magnetic materials.
Activity:
Collect different materials from your surroundings like Iron nail, brass screw, aluminium foil, plastic comb, coin, sewing needle, copper wire, aluminium foil, glass marble, eraser, stainless steel spoon, plastic ruler, pencil etc. Now bring a magnet close to the objects.
Observation: We will observe that some materials like Iron nail, Sewing needle, and coin are attracted towards a magnet while the other substances like a brass screw, Aluminium foil, plastic comb etc do not get attracted towards a magnet.
1. Magnetic Materials
Those materials which are attracted b a magnet are magnetic materials. Iron, Nickel, and Cobalt are the magnetic substances as objects made up of these materials are attracted by a magnet. Also, magnetic materials can be magnetized or we can say that magnetic materials can be converted into magnets.
2. Non-Magnetic Materials
Those materials which are not attracted by a magnet are called non- magnetic materials. All the substances other than iron, nickel, and Cobalt are non-magnetic substances for example plastic, rubber, water, etc are nonmagnetic materials. Non-magnetic substances cannot be magnetized.
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Answer:
Magnetism is a class of physical phenomena that are mediated by magnetic fields. Electric currents and the magnetic moments of elementary particles give rise to a magnetic field, which acts on other currents and magnetic moments. Magnetism is one aspect of the combined phenomenon of electromagnetism.Magnetism is a property of materials that respond at an atomic or subatomic level to an applied magnetic field.
Materials that get attracted toward magnets are known as magnetic substances.
Materials that do not get attracted toward magnet are known as non-magnetic substances.
Iron balls, nails, and coins are made up of magnetic materials as they are attracted toward magnets. Plastic scales, leather shoes, and candles are made up of non-magnetic materials as they are not attracted toward magnets.
Explanation:
Magnetic materials are attracted to permanent magnets while non-magnetic materials are not. The difference between magnetic and non-magnetic materials is that the magnetic materials are attracted to an external magnetic field due to their proper alignment of magnetic domains whereas non-magnetic materials are repelled from an external magnetic field due to their random arrangement of magnetic domains.