Câu hỏi:
21/10/2023 667
Magnets
A solid object that has the power to attract iron and some metals is called a magnet. It does this through its magnetic field, a region of force surrounding it. The (1) _______ the magnet, the more intense is the field.
Objects that are attracted to the magnet feel a force (2) _______ as magnetism when they are inside the magnetic field. This magnetic force can pass through some materials. Even a weak magnet will attract a pin to the other side of a sheet of paper, for example.
Magnets come in (3) _______ shapes. A familiar one is the curved horseshoes magnet. There are also bar magnets in the form of disc or a stubby cylinder. Every magnet has (4) _______ poles, called north and south, at opposite ends of it: at the two ends of a horseshoes magnet, for example, or on the two sides of a disc.
Powerful magnets can be made by passing an electric current through wire coiled around a piece of iron. The (5) _______ is called and electromagnet. Magnets are used in many household and everyday devices. They are also commonly used in industrial machinery, usually in the form of electromagnets.
The (1) _______ the magnet, the more intense is the field.
Magnets
A solid object that has the power to attract iron and some metals is called a magnet. It does this through its magnetic field, a region of force surrounding it. The (1) _______ the magnet, the more intense is the field.
Objects that are attracted to the magnet feel a force (2) _______ as magnetism when they are inside the magnetic field. This magnetic force can pass through some materials. Even a weak magnet will attract a pin to the other side of a sheet of paper, for example.
Magnets come in (3) _______ shapes. A familiar one is the curved horseshoes magnet. There are also bar magnets in the form of disc or a stubby cylinder. Every magnet has (4) _______ poles, called north and south, at opposite ends of it: at the two ends of a horseshoes magnet, for example, or on the two sides of a disc.
Powerful magnets can be made by passing an electric current through wire coiled around a piece of iron. The (5) _______ is called and electromagnet. Magnets are used in many household and everyday devices. They are also commonly used in industrial machinery, usually in the form of electromagnets.
The (1) _______ the magnet, the more intense is the field.
Đáp án chính xác
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Trả lời:
Giải bởi Vietjack
Đáp án B
Small (adj): nhỏ
Strong (adj): khỏe, chắc, bền
Weak (adj): yếu
Thin (adj): mỏng
Dịch: “… Nam châm càng chắc/ bền, thì từ trường càng mạnh
Câu hỏi cùng đoạn
Câu 2:
Objects that are attracted to the magnet feel a force (2) _______ as magnetism when they are inside the magnetic field.
Đáp án chính xác
Lời giải của GV VietJack
Đáp án C
Known as: được biết đến là
Dịch: “Những vật thể mà bị hút bởi nam châm sẽ nhận được một lực được biến đến là từ trường khi chúng ở trong vùng từ trường ấy.
Câu 3:
Magnets come in (3) _______ shapes.
Đáp án chính xác
Lời giải của GV VietJack
Đáp án B
Separate (v): phân chia
Different (adj): khác nhau
Unknown (adj): không được biết đến
Identical (adj): giống nhau
Dịch: “Nam châm có nhiều hình dạng khác nhau…”
Câu 4:
Every magnet has (4) _______ poles, called north and south, at opposite ends of it: at the two ends of a horseshoes magnet, for example, or on the two sides of a disc.
Every magnet has (4) _______ poles, called north and south, at opposite ends of it: at the two ends of a horseshoes magnet, for example, or on the two sides of a disc.
Đáp án chính xác
Lời giải của GV VietJack
Đáp án C
Dịch: “Mỗi nam châm đều có 2 cực, gọi là cực bác và cực nam…”
Câu 5:
The (5) _______ is called and electromagnet.
Đáp án chính xác
Lời giải của GV VietJack
Đáp án B
Ending (n): sự kết thức
Result (n): kết quả
Conclusion (n): kết luận
Final (adj): cuối
Câu phía trên vừa đề cập đến cách (thí nghiệm) để tạo ra một nam châm, vì thế ở câu này sẽ đề cập đến kết quả (result)
Nhà sách VIETJACK:
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