north-seeking pole
Học thuậtThân thiện
Definition
Noun: The end of a freely suspended magnet that points toward the Earth's geographic north. This pole is attracted to the Earth's magnetic south pole, which is located near the geographic north.
Usage
The term "north-seeking pole" is used specifically in physics and magnetism to describe one of the two poles of a magnet. It is the pole that naturally aligns itself toward the north direction when the magnet is allowed to rotate freely (e.g., in a compass).
Examples
- The north-seeking pole of the bar magnet was painted red for identification.
- In a simple compass, the needle's north-seeking pole points toward the Earth's geographic north.
- When two magnets are brought close, the north-seeking pole of one will attract the south-seeking pole of the other.
Advanced Usage
- Magnetic Polarity: The concept of the north-seeking pole is fundamental for understanding magnetic fields and polarity. It is often contrasted with the "south-seeking pole."
- Geomagnetism: The Earth itself behaves like a giant magnet. The north-seeking pole of a compass needle is attracted to the Earth's magnetic south pole, which is located near the geographic North Pole.
Variants and Related Words
- North Pole (of a magnet): A common, less formal synonym for "north-seeking pole."
- Positive magnetic pole: In some historical or specific contexts, the north-seeking pole is designated as the positive pole.
- South-seeking pole: The opposite pole of a magnet, which points toward geographic south.
Synonyms
- North magnetic pole (of the magnet)
- N-pole
Antonyms
- South-seeking pole
- South magnetic pole (of the magnet)
- S-pole
Noun
- the pole of a magnet that points toward the north when the magnet is suspended freely