SCIENCE
EARTH SCIENCE
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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North
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West
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Downward
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South
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Detailed explanation-1: -A magnetic compass points to the earth’s magnetic pole s, which are not the same as earth’s geographic poles. Furthermore, the magnetic pole near earth’s geographic north pole is actually the south magnetic pole. When it comes to magnets, opposites attract.
Detailed explanation-2: -Earth’s south magnetic pole is near Earth’s geographic north. Earth’s magnetic north pole is near Earth’s geographic south. That’s why the north pole of a compass points toward north because that’s where Earth’s south magnetic pole is located and they attract.
Detailed explanation-3: -Planet Earth is surrounded by a magnetic field. Earth’s magnetic field is almost the same shape as the magnetic field around a bar magnet, so it is called a “dipole field” (two poles). Swirling motions of molten iron and nickel in Earth’s core generate our planet’s magnetic field.
Detailed explanation-4: -While magnetic compass needles come in a variety of magnetic dipole moments, a representative value for the magnetic dipole moment of a compass needle is . 1A⋅m2.
Detailed explanation-5: -A compass consists of a small metal needle which is magnetised itself and which is free to turn in any direction. Therefore, when in the presence of a magnetic field, the needle is able to line up in the same direction as the field.