Lesson 1 - Magnetism and Electromagnetism Test with Answers Rated A
1. ? is a force that acts at a distance and is caused by a Magnetism
magnetic field.
2. A(n) ? is easily magnetized. Ferromagnetic material
3. A ? can hold its magnetism for a long period of time. Permanent magnet
4. All magnets have a north and south pole. True
5. Unlike magnetic poles attract. True
6. The force of attraction between two magnets decreas- True
es as the distance between the magnets increases.
7. A material is magnetic if it has ? . Organized molecular
magnets so that the indi-
vidual fields add together
8. Permanent magnets might be demagnetized by a True
sharp blow.
9. Permanent magnets might be demagnetized by ex- False
treme cold.
10. ? is magnetism produced when electricity passes Electromagnetism
through a conductor.
11. The left-hand rule can be used to determine the polar- True
ity of a coil.
Note: Figure 1-7 in the
textbook illustrates the
Left-Hand Rule for Coils.
12. Magnetic field intensity
1/4
1. ? is a force that acts at a distance and is caused by a Magnetism
magnetic field.
2. A(n) ? is easily magnetized. Ferromagnetic material
3. A ? can hold its magnetism for a long period of time. Permanent magnet
4. All magnets have a north and south pole. True
5. Unlike magnetic poles attract. True
6. The force of attraction between two magnets decreas- True
es as the distance between the magnets increases.
7. A material is magnetic if it has ? . Organized molecular
magnets so that the indi-
vidual fields add together
8. Permanent magnets might be demagnetized by a True
sharp blow.
9. Permanent magnets might be demagnetized by ex- False
treme cold.
10. ? is magnetism produced when electricity passes Electromagnetism
through a conductor.
11. The left-hand rule can be used to determine the polar- True
ity of a coil.
Note: Figure 1-7 in the
textbook illustrates the
Left-Hand Rule for Coils.
12. Magnetic field intensity
1/4
