The needle of the compass is made of a magnet because it .a)Attracts m...
The Needle of the Compass is Made of a Magnet
The needle of a compass is made of a magnet because it has several unique properties that make it ideal for use in a compass. Let's explore these properties in detail.
1. Attracts Metal:
One of the main reasons the needle of a compass is made of a magnet is because magnets have the ability to attract certain types of metals. When a magnet is brought near a metal object, such as a paperclip, the metal object is drawn towards the magnet. This property of magnets is known as magnetic attraction.
In the case of a compass needle, the magnetized needle is attracted to the Earth's magnetic field. The Earth itself acts as a giant magnet, with one end of the magnet near the North Pole and the other end near the South Pole. The needle of the compass, being a magnet, is naturally drawn towards the Earth's magnetic field.
2. Comes to Rest in a North-South Direction:
Another reason the needle of a compass is made of a magnet is because it comes to rest in a north-south direction. The magnetized needle aligns itself with the Earth's magnetic field, indicating the north-south direction. The end of the needle that points towards the Earth's North Pole is called the north-seeking pole, while the end that points towards the South Pole is called the south-seeking pole.
This alignment of the compass needle allows us to determine the direction of North, which is crucial for navigation and orientation. By observing the direction in which the needle points, we can determine the cardinal directions (North, South, East, and West) as well as the intermediate directions (Northeast, Northwest, Southeast, and Southwest).
3. Gets Deflected When a Magnet is Brought Closer:
When a magnet is brought closer to the needle of a compass, it gets deflected from its original position. This happens because the magnetized needle experiences the magnetic force exerted by the external magnet. The deflection of the needle indicates the presence of another magnetic field.
By observing the deflection of the compass needle, we can identify the presence and strength of other magnetic fields. This property is particularly useful in various applications, such as locating buried metal objects or studying the magnetic properties of different materials.
Conclusion:
In conclusion, the needle of a compass is made of a magnet because it attracts metal, comes to rest in a north-south direction, and gets deflected when a magnet is brought closer. These properties make the magnetized needle an essential component of a compass, allowing us to navigate and determine directions accurately.
The needle of the compass is made of a magnet because it .a)Attracts m...
Introduction:
The needle of a compass is made of a magnet because it exhibits certain properties that make it ideal for use in a compass. The magnetized needle aligns itself with the Earth's magnetic field, allowing it to point in a north-south direction. Additionally, the needle also gets deflected when a magnet is brought closer, demonstrating its magnetic properties.
Attracts metal:
One of the properties of a magnet is its ability to attract certain types of metals, such as iron and steel. This attraction is due to the magnetic field produced by the magnet. When a metal object comes into contact with the magnet, it experiences a force of attraction and may be pulled towards it. The needle of a compass, being made of a magnet, also possesses this property. This is why the needle can attract metal objects, such as paperclips, when brought close to them.
Comes to rest in a north-south direction:
The Earth has its own magnetic field, with magnetic north and south poles. The needle of a compass is magnetized, which means it has its own north and south poles as well. When the compass is held horizontally, the needle aligns itself with the Earth's magnetic field. The north pole of the needle is attracted towards the Earth's magnetic south pole, while the south pole of the needle is attracted towards the Earth's magnetic north pole. As a result, the needle comes to rest in a north-south direction, allowing us to determine the cardinal directions.
Gets deflected when a magnet is brought closer:
When a magnet is brought near another magnet, it can exert a force on it. This force can cause the magnet to move or get deflected from its original position. In the case of a compass needle, which is also a magnet, it exhibits the same behavior. When a magnet is brought close to the compass needle, the needle can get deflected from its north-south alignment and point towards the nearby magnet instead. This deflection occurs due to the interaction between the magnetic fields of the two magnets.
Conclusion:
The needle of a compass is made of a magnet because it possesses certain properties that make it suitable for use in a compass. It can attract metal objects, comes to rest in a north-south direction aligning with the Earth's magnetic field, and gets deflected when a magnet is brought closer. These properties allow the compass needle to accurately indicate the cardinal directions and make it a reliable tool for navigation.
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