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The needle in compasses is magnetic and is drawn to the Earth's magneticism in the North. When the needle is placed near a metal, as all magnets are, attracted to metals.

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Q: When a compass pointing north will point in a different direction when placed near a piece of metal Which causes this to happen?
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Why does a compass spin when it is placed next to a magnet?

A compass needle is a small magnet itself. When it is placed next to a larger magnet, the magnetic field of the larger magnet interacts with the magnetic field of the compass needle. This interaction causes the compass needle to align with the magnetic field of the larger magnet, causing it to spin and point in the direction of the magnetic field lines.


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What causes a compass to behave as it does?

The needle of a compass is a magnet, and the earth is also a magnet. The side of the compass marked N is attracted to the north pole of the Earth, and the side marked S is attracted to Earth's south pole. The compass will spin to line itself up with the poles it is attracted to. However, if you have other magnets nearby, the compass can spin to line itself up with those instead.


What causes a compass needle to point to geographic north?

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What causes a compass needle to point in a certain direction?

When the needle of a compass points in a certain direction that means that the poles of earth have alined it so the point is pointing to the north pole (because earth is a magnet) so In conclusion the poles of earth are being attracted to the opposite pole of the needle because opposites attract and the needles in compasses are designed to point the "pointy" part at the north pole. (pretty smart for an 11year old). To be a little more technical, all magnets have a magnetic field going out from its North Pole and entering back in at its South Pole. When in another magnetic field, the fields will exert a force to try to align the field lines. If near a ferromagnetic material, such as iron, the field lines are distorted and exert a force between the magnet and the metal to realign the fields. Since the compass needle has a small mass, and easily spins, it is usually the object which will move.


Which one mineral causes a compass needle to turn away from North?

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Why can ships with iron hulls causes a compass to become unreliable?

Because the ships might go to different directions(maybe)