Magnets
Door Ahmad Rafi Ahamad Rakhshan
1. Examples of Non-Magnetic materials:Aluminium,Copper
1.1. Non-Magnetic materials cannot be turned into a magnet.
2. There is only two poles in a magnet.
2.1. North
2.1.1. South
3. Magnets have a strength called as magnetism
3.1. Like poles repel
3.1.1. Unlike poles attract
4. Magnetism in a magnet weakens by some causes
4.1. Heated over a flame
4.1.1. Hammered
4.1.1.1. Dropped
5. We can make magnets using magnetic materials
5.1. To make a magnet we have to stroke a magnetic material using a bar magnet more than 20 times.
5.1.1. To make an electromagnet we have to coil a magnetic material and connect the coil to the batteries.
5.1.1.1. To strengthen the electromagnet we can add more batteries or coil it around a lot of times.
6. There is two types of materials in the lesson of magnets.
6.1. Magnetic materials
6.1.1. Non-Magnetic materials