give scientific reasons
1)A magnet should not be knocked about ?
2)A magnet is used in the mariner 's compass?
Solution
1) A magnet should not be knocked about because it can cause the magnet to lose its magnetism. Magnets are made up of tiny magnetic domains, and when these domains are arranged in a particular way, the magnet has a magnetic field. When a magnet is knocked or dropped, it can cause the domains to become misaligned, which can weaken or even erase the magnet's magnetic field.
2) A magnet is used in the mariner's compass because a magnet has a north and south pole, which allows it to align with the Earth's magnetic field. The mariner's compass uses this principle to determine direction. The magnetized needle in the compass is suspended so that it can rotate freely, and it aligns itself with the Earth's magnetic field. The north pole of the needle points towards the Earth's magnetic north pole, which allows the mariner to determine their direction of travel.
1) A magnet should not be knocked about because it can cause the magnet to lose its magnetism. Magnets are made up of tiny magnetic domains, and when these domains are arranged in a particular way, the magnet has a magnetic field. When a magnet is knocked or dropped, it can cause the domains to become misaligned, which can weaken or even erase the magnet's magnetic field.
2) A magnet is used in the mariner's compass because a magnet has a north and south pole, which allows it to align with the Earth's magnetic field. The mariner's compass uses this principle to determine direction. The magnetized needle in the compass is suspended so that it can rotate freely, and it aligns itself with the Earth's magnetic field. The north pole of the needle points towards the Earth's magnetic north pole, which allows the mariner to determine their direction of travel.