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地磁场是考纲明确的考点内容 ,在近几年的高考试题中屡有出现。因其与生产、生活实际、现代科学技术应用和近代物理知识紧密相关 ,故深得命题者的青睐 ,在学习或复习中应引起高度重视。下面本文就从几个方面对地磁场进行阐述以飨读者。1 地磁场的起源说地球是一个磁体 ,地球周
The geomagnetic field is a clear test point for the syllabus, and has frequently appeared in the high exam questions in recent years. Because it is closely related to production, practical life, application of modern science and technology, and knowledge of modern physics, it has won the favor of propositioners and deserves great attention in learning or reviewing. The following article will elaborate on the geomagnetic field from several aspects to the reader. 1 The origin of the geomagnetic field says that the earth is a magnet, Earth Week