Question

describing magnets
with the help of science books and your previous lessons on magnetism, fill in the blanks with the correct answers. choose from the word list below.
poles attracts north pole
magnetic field south pole iron filings
magnetism temporary magnet bar magnet
solenoid magnetic induction permanent magnet

1. __________ is commonly attributed to ferromagnetism and electromagnetism depending on the material and moving charges. stroking with a 2. ________ is one of the ways to induce or cause magnetism in an object that can be magnetized. attraction happens after 3. ________ occurs. a magnet 4. __________, but do not repel, unmagnetized ferromagnetic materials such as iron, nickel, cobalt and some of its alloys like steel and alnico.

a 5. __________ surrounds a magnet. the magnetic field is strongest at the 6. ____ where the magnetic lines of induction (flux) are closest. the magnetic field pattern can be shown using 7. iron filings that align along magnetic lines of induction. the magnetic lines of induction leave the 8. ____ and enter the 9. ____ in close loops and can be indicated by the north pole of a compass. the earth acts like a giant 10. ______ and has a magnetic field similar to it.

Explanation:

1. Magnetism is the general term encompassing ferromagnetism and electromagnetism.
2. A permanent magnet is used in stroking to induce magnetism.
3. Magnetic induction leads to attraction.
4. A magnet attracts unmagnetized ferromagnetic materials.
5. A magnetic field surrounds a magnet.
6. The poles have the strongest magnetic field.
7. Iron filings show the magnetic field pattern.
8. Magnetic lines leave the north pole.
9. Magnetic lines enter the south pole.
10. The Earth acts like a giant bar magnet.

Answer:

1. Magnetism
2. Permanent magnet
3. Magnetic induction
4. Attracts
5. Magnetic field
6. Poles
7. Iron filings
8. North pole
9. South pole
10. Bar magnet