Why do magnets attract? 162021-06 3 What makes snow? 52021-06 4 Why do we have hair? 102021-06 5 Who was Elisabeth I ? 32021-06 6 What causes twins? 42021-06 7 When was the first car invented? 132021-06 8 What gives my eyes their color? 92021-06 9 Who started April fool's ...
Why do magnets attract?: and other questions about magnetismWhat is magnetism? What is a magnetic field? What are a magnet's poles? You can find the answers to these and other questions about magnets in Why Do Magnets Attract?
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Magnets have been one of the most useful materials discovered and have been the source for much wonder and entertainment. Since their discovery thousands of years ago, people have found uses for magnets in all types of equipment. From compasses to cabine
Why do magnets attract or repel? Why is gravity so heavy? Why are neutrons needed to trigger fission in a nuclear reactor? What is the Universe - space or matter? Is matter invincible? Define what is a particle accelerator. Describe matter waves. ...
Why do magnets attract or repel? What is the difference between magnetic field and magnetic force? Explain why a soft-iron core increases the strength of an electromagnet. Why the ferromagnetic materials can be magnetized easily? How do electric and magnetic forces relate to ...
Do you know how? A magnet pulls things made of metals called iron and steel. But it will not pull other things, such as a wooden pencil or a plastic toy, which means it does not attract all. Magnets Have Two Poles (磁 ) 无 3 You have shown magnets can pull some things to them....
Magnets attract some types of metals, but they can also push other magnets away. So how come you feel only the pull of gravity? In 1915, Albert Einstein figured out the answer when he published his theory of general relativity. The reason gravity pulls you toward the ground is that all ...
结果1 题目 11. What is the main purpose of the passage? C A. To explain why magnets can attract metal. B. To give some information about magnets. C. To encourage readers to discover magnets. 相关知识点: 试题来源: 解析 答案见上 反馈 收藏 ...