SCIENCE
PHYSICAL SCIENCES
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -This works because the Earth itself has a magnetic field which is similar to that of a bar magnet. The compass needle aligns with the Earth’s magnetic field direction and points north-south. Once you know where north is, you can figure out any other direction.
Detailed explanation-2: -When you use a compass to see which way is north, south, east, and west, you are really using a magnet. The little moving pointer in a compass is actually a small magnet! The needle lines up and points in a certain direction because Earth itself has magnetism and acts like a magnet too!
Detailed explanation-3: -The needle of a magnetic compass, itself being a magnet, can attract all kinds of magnetic materials. In the absence of external magnets, it always comes to rest in the North-South direction due to the Earth’s magnetic field.
Detailed explanation-4: -A compass is indeed a permanent magnet. It always possesses the property of pointing to magnetic north. This option is true. A compass has both a north pole and a south pole.