Under some conditions, sure. Impact and intense heat for instance can render a magnet weaker.
a Temporary Magnet lose its magnetism quickly, a Permanent Magnet is hard and it keeps it magnetism
Something called a permanent magnet
The known magnetism in a bar magnet is electromagnetism.
No it wont but if the water is hot then it will lose its magnetism
Temporary magnet: good example is an electromagnet. It maintains magnetic attraction only so long as an electric current surrounds it. Permanent magnet: most common. Example: bar magnet. Will maintain magnetic properties for quite a while, although they can be eventually demagnetized.
But they are! You can find lifting magnets based on permanent magnets all over in machine shops.
It can lose it by being heated, being struck or being exposed to a rapidly changing magnetic field.
A magnet can lose its magnetism if exposed to high temperatures. If heated above the point called the Curie temperature, a magnet will lose its magnetism.
Yes
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over time it will lose its magnetism. It will also lose its magnetism if it is temperature is to high or when it's vibrate too much.
A permanent magnet is a magnet which will keep its magnetism for a very long time and is difficult to change. No, As I think a permanent magnet means they have abilities to hold the magnetism when they are magnetized. Such as Alnico permanent magnets, but in fact, they can be demagnetized,such as high temperature, hit each other,pulse waves, out magnetic field influence...What's more, different permanent magnetic material, have different abilities on holding magnetism,they can be used in different environments. you can find some details from some manufacturers website, to learn some knowledges.