Question

1. Explain why a freely suspended magnet rests in a North-South direction and how this is used in a compass for navigation?

Answer 1

Answer:

A freely suspended magnet point in the north south direction because the north pole of the magnet is attached to the South pole of the Earth and the South pole of the Magnet is attached to the North pole of the Earth.

Explanation:

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Answer 2

A Freely suspended magnet rests in a North-South direction

Explanation:

• A" freely suspended magnet" comes to rests in the geographic north-south direction.  There are two geographical poles in Earth,"the North Pole" & "the South Pole". They are the places on the surface of the Earth from which the "imaginary axis of rotation passes through". Our planet also has "two magnetic poles". the "north magnetic pole" and "the south magnetic" similar to a bar magnet.
• The "magnetic poles" are close to the "geographic poles", however are not in the same place as the "geographical poles". The needle points to a magnetic pole within a compass. The "North magnetic pole" of the Earth are also "the South pole" of the earth, and vice versa. Therefore a freely suspended magnetic comes to rest in the north-south direction.
• The magnetic compass uses the above principle. A magnetic compass comprises  a "magnetic needle" pivoted in a "horizontal plane" which denotes the direction of "magnetic north" at points on surface of the Earth. It is an instrument which utilises a magnetised steel bar to denote the direction relative to the magnetic poles of the Earth