1 Which of the following are true regarding Earth’s magnetic field? Check all that apply.     the magnetic poles drift about 10-15 km per year   scientists are not really sure why Earth acts like a magnet   the magnetic north pole is actually the south pole of Earth’s “magnet”   the magnetic north pole is stationary   2You heat up a piece of metal and bring it close to a strong magnet. You let the piece of metal cool while in place. What happens?   The induced magnet will stay a magnet after it cools.   Nothing happens in this case, because there was no contact between the metal and strong magnet.   The magnetic ability of the original strong magnet will be reduced by the presence of the non-magnetic material.   After the induced magnet is moved away from the strong magnet, it will return to its non-magnetic form.

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Bar Magnet

In physics, magnetism is a phenomenon exhibited by a magnetic substance that exerts either attractive or repulsive force. A bar magnet is either a rectangular or round and hollow fit comprised of ferromagnetic materials and has a fanciful attractive field surrounded by it.