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Heating a bar magnet could reduce its magnetism because the heat, by raising the energy level in the metal, disorients the atoms, which disrupts the magnetism.

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Can one re magnetize a magnet?

Yes, a magnet can be ridden of it's magnetic properties by either using it to pick up iron filings or heating it up and rubbing it on another magnet. This is called demagnetizing. On the other hand, magnets can be re-magnetized by heating and holding the south end of a magnet on one end and the north side of another magnet on the opposite end although the magnet will not be as strong as before.


Will a magnet stop a bullet?

Noop. Even if you had a bullet that was attracted to a magnet (like an iron bullet), it would have too much kinetic energy to be effected. I guess if you had a really big and thick magnet, it could stop a bullet, just like a book can sometimes stop a bullet. This has nothing to do with magnetism, but just the interaction of mass.


Who discovered that a magnet can be used to produce electricity?

Physicists as early as Michael Faraday (1791-1867) invented simple motors based on the principle that magnetic fields could be created, manipulated, and turned into mechanical motion. Without it, technology wouldn't exist. Although he didn't 'discover' it, he was the first to produce it.


What could you do to an electro magnet to make it weaker?

You can pull the cord from the magnet to make it weaker so it wont pick up as many items you think it will


How does different water temperatures affect the strength of a magnet?

Water temperature does not directly affect the strength of a magnet. However, extreme temperatures can alter the properties of the magnet material itself, which could impact its magnetic strength. In general, magnets are most effective within a certain temperature range specified by the manufacturer.

Related Questions

How does the weight of a magnet affect its strength?

The weight of a magnet does not directly affect its strength. The strength of a magnet is determined by its magnetic material, shape, and how it is magnetized. A heavier magnet may have more material in it, which could potentially make it stronger if the material used has high magnetic properties.


Does a magnet lose its magnetism when taken to the moon?

No, because the moon has a gravitational pull as well. Well actually, I don't know, but it could be true...


Is magnetism or electricity better?

It could be either one. It all depends on what you need to use it for. For example, you need a magnet to pick up scrap metal, but the same magnet is no good at all for lighting a flashlight.


What might happen to a metal pair of scissors if rubbed in one direction with the north pole of a magnet?

The metal scissors could become weakly magnetized in the same direction as the north pole of the magnet due to being aligned with its magnetic field. This could cause the scissors to attract or repel other magnetic objects depending on their orientation.


Can a magnet be broken?

Not exactly. All pieces of the magnet retain their ferrous properties, but if they were (for example) dropped, then the shock of the fall could potentially make them lose a bit of magnetism. Extreme temperature changes and high power electric discharges could also decrease the power of the magnet.


Which method is appropriate for separating a mixture of iron and aluminum?

You could do this using a magnet, Iron filings are attracted to a magnet, aluminium filings are not.Hint: magnetism, investigate the relative magnetic properties of the metals.Iron is a ferrous material, and aluminum is non-ferrous. A magnet would separate the two materials as the iron would be attracted to the magnet while the aluminum filings would not. The term ferrous basically refers to any material which contains iron.


How could you test the effects of heating and cooling on the magnetization of a bar magnet?

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.


What is one way that a magnet's domain could become unaligned?

heat


How do you demagnetise a magnet?

One method is to strike it repeatedly with a hammer and you could also pass an A.C current through a solenoid quickly to remove the magnetism. By throwing from hight also


How do i you could test the effects of heating and cooling on the magnetization of a bar magnet?

what ever figure out ur own anwsers people dont cheat


How do you write a sentence with the word magnetism in it?

Well you could say............ I hate magnetism (:


How are magnets destroyed?

Ferromagnetism can be impaired by creating an opposing magnetic field. A wire coil placed around a magnet creates an electromagnetic field. If this is aligned in the opposite direction, it could eventually remove the intrinisic field of the permanent magnet.In many cases, simply heating a magnet would likewise remove the magnetic field.Use a degaussing coil (driven by AC, not DC). Gradually reduce the field strength either by reducing the AC current or slowly separating the coil and the object.