Paragraph on “How does a compass work?” complete paragraph for Class 9, Class 10, Class 11 and Class 12
How does a compass work?
A magnet will always point north- south because it is attracted to the north and south magnetic poles of the earth. This property is used in the compass. A small needle – like magnet with its north and south poles marked is balanced on a pivot. The pivot is placed in the center of a card with all the directions or ‘points of the compass’ marked on it. If a traveler positions the compass so that the needle lies along the north- south line on the card he can read off the direction in which he is going.
Long ago, sailors navigated using the sun by day and the stars at night. If it was too cloudy for them to see the sun or the stars they did not know which way to go. The compass revolutionized sea travel because the sailors could find their way whatever the weather.
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