A magnet works because the atoms of a magnet are all aligned in only a single uniform direction, in most cases due to the direction of north to south.Heating a magnet causes the alignment to be disturbed and be misaligned, thus losing its magnetic power.The temperature at which a heated magnet loses its magnetism is called the Curie Point named after Pierre Curie husband of Marie Curie.
Heating up a magnet can temporarily increase its magnetic strength by aligning its magnetic domains. However, once the magnet cools down, it will return to its original magnetic strength. Heating a magnet beyond its Curie temperature can cause it to lose its magnetism altogether.
A permanent magnet (i.e. not an electromagnet) will be demagnetised by heating it.
it will loose its magnesium
Yes
When you drop or heat a magnet, the domains may temporarily lose alignment, but once the magnet stops moving or cools down, the domains will realign and the magnet's strength will return. Dropping or heating a magnet will not permanently weaken it.
Heating a magnet can cause it to lose its magnetism by disrupting the alignment of its magnetic domains. This is due to the increased thermal energy overcoming the magnetic forces within the material. Repeated or excessive heating can permanently demagnetize the magnet.
I suggest that you incinerate it.
Heating a bar magnet is a physical change because the magnet does not undergo a chemical reaction. The heat energy causes the atoms in the magnet to vibrate, which disrupts the alignment of the magnetic domains within the magnet, thereby reducing its magnetic strength.
heating it or freezing it i believe
You can demagnetize a magnet by heating it up to its Curie temperature, by striking it with a hard blow, or by applying an alternating magnetic field that disrupts the alignment of its magnetic domains.
Heating a permanent magnet above its Curie temperature can demagnetize it, causing it to lose its magnetic properties. Hitting a permanent magnet can also disrupt its magnetic alignment, potentially weakening its overall magnetic strength.
To test the effects of heating on magnetization, heat the bar magnet to a specific temperature and measure its magnetization using a magnetometer. To test the effects of cooling, cool the bar magnet to a specific temperature and again measure its magnetization. By comparing the magnetization measurements before and after heating or cooling, you can observe any changes in the magnetization properties of the bar magnet.