Question

1. Which of the following statements correctly describes the behavior of magnets? • Like poles attract each other, and unlike poles repel each other. • Like poles repel each other, and unlike poles attract each other. • Both like and unlike poles can attract and repel each other depending on the surrounding materials. • none of the above 2. What do physicists call large groups of atoms whose net spins are aligned because of strong coupling between neighboring atoms? • Magnetic zones • Magnetic regions • Magnetic sectors • Magnetic domains 3. Which of the following statements about magnetic fields, B, is not true? • Magnetic fields are vector quantities. • Magnetic fields have both magnitude and direction. • Magnetic field strength increases as the distance from the magnetic source increases. • Magnetic fields are regions in which magnetic forces can be detected. 4. How is the direction of a magnetic field, B, defined at any location? • the direction toward which the south pole of a compass needle points • the direction toward which the north pole of a compass needle points • the direction that is parallel to the imaginary magnetic field lines • the direction that is perpendicular to Earth's magnetic field 5. Since more magnetic field lines cross the area that is near the pole of a magnet, what does this indicate about the magnetic field strength in that location? • It is stronger. • It is weaker. • It is entering the magnet. • It is leaving the magnet.

1. Which of the following statements correctly describes the behavior of magnets?
• Like poles attract each other, and unlike poles repel each other.
• Like poles repel each other, and unlike poles attract each other.
• Both like and unlike poles can attract and repel each other depending on the surrounding materials.
• none of the above
2. What do physicists call large groups of atoms whose net spins are aligned because of strong coupling between neighboring atoms?
• Magnetic zones
• Magnetic regions
• Magnetic sectors
• Magnetic domains
3. Which of the following statements about magnetic fields, B, is not true?
• Magnetic fields are vector quantities.
• Magnetic fields have both magnitude and direction.
• Magnetic field strength increases as the distance from the magnetic source increases.
• Magnetic fields are regions in which magnetic forces can be detected.
4. How is the direction of a magnetic field, B, defined at any location?
• the direction toward which the south pole of a compass needle points
• the direction toward which the north pole of a compass needle points
• the direction that is parallel to the imaginary magnetic field lines
• the direction that is perpendicular to Earth's magnetic field
5. Since more magnetic field lines cross the area that is near the pole of a magnet, what does this indicate about the magnetic field strength in that location?
• It is stronger.
• It is weaker.
• It is entering the magnet.
• It is leaving the magnet.

Added by Benjamin C.

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