Question

Short Answer type Questions
1. What are magnetic and nonmagnetic Materials. 2. What are different type of magnets? And where are the poles located?
3. Write the names of some non-magnetic substances. 4. What are the properties of a magnet?
5. In which direction does freely suspended magnet rest?
Long Answer type Questions
1. List any three applications of magnet. What do you mean by temporary magnets.​

Answer 1

Answer:

1)Substances that are attracted by a magnet are called magnetic substances. Example: Iron, cobalt, nickel, etc. Substances that are not attracted by a magnet are called non-magnetic materials. Example: Aluminium, copper, wood, etc.

2)Different types of magnets are : Bar magnet : the poles are located at the ends of the bar. Horsehoe magnet : the poles are located at the two free ends of the 'U' shape. Cylinder magnet: the poles are located at the two circular ends of the cylinder.

3)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.

4)They are: Attractive Property – Magnet attracts ferromagnetic materials like iron, cobalt, and nickel. Repulsive Properties – Like magnetic poles repel each other and unlike magnetic poles attract each other. Directive Property – A freely suspended magnet always points in a north-south direction.

5)A freely suspended magnet always comes to rest in the North-South direction. Hence, sailors used to find direction by suspending a piece of bar magnet. (W) A magnet always has two poles. A magnet has two poles called the south pole (S) and the north pole (N).

Magnets are used in magnetic compass, doorbells, refrigerators. Magnets are used in dynamos, motors, loudspeakers, microphones etc. Ceramic magnets are used in computers.

Explanation:

pls tag me as brainleist

Answer 2

Answer:

1) Magnetic Materials are those materials which can be attracted by a Magnet. Whereas Non- Magnetic materials doesn't get attracted by a Magnet.

2) There is two types of Magnet

a) Permanent Magnet - Poles located at both ends and Permanent

b) Temporary Magnet - poles located at end of Magnet and poles can be changed by changing the direction of current through solenoid.

3) Plastics, Wood, Marbel, Tiles, Paper etc. are some examples of Non- Magnet substances.

4) Attractive Property – Magnet attracts ferromagnetic materials like iron, cobalt, and nickel.

Repulsive Properties – Like magnetic poles repel each other and unlike magnetic poles attract each other.

Directive Property – A freely suspended magnet always points in a north-south direction.

5) In North South Direction.

Long answer

1) Applications of magnet

a) Magnets are used in magnetic compass, doorbells, refrigerators.

b) Magnets are used in dynamos, motors, loudspeakers, microphones etc.

c) Ceramic magnets are used in computers.

d) Magnets are used in toys to give a magic effect

Temporary magnets are those that simply act like permanent magnets when they are within a strong magnetic field. Unlike permanent magnets however, they loose their magnetism when the field disappears. Paperclips, iron nails and other similar items are examples of temporary magnets.