Lesson 1083 of 1524
Magnetism
A charged particle moving through a magnetic field experiences a force whose direction is determined by the right-hand rule
Practice this chapterA charged particle moving through a magnetic field experiences a force whose direction is determined by the right-hand rule All magnets have two poles: a north pole and a south pole.
If the magnet is free to move, its north pole orients itself toward the geographic North Pole of Earth, and the south pole orients itself toward the geographic South Pole of Earth A repulsive force occurs between the north poles of two magnets and likewise for two south poles.
magnet — free to move, its north pole orients itself toward the geographic North Pole of Earth, and the south pole orients itself toward the geographic South Pole of Earth. right-hand rule — rule involving curling the right-hand fingers from one vector to another; the direction in which the right thumb points is the direction of the resulting vector. magnetic field — directional lines around a magnetic material that indicates the direction and magnitude of the magnetic force. north pole — part of a magnet that orients itself toward the geographic North Pole of Earth.
Worked example
What does “magnet” mean in Magnetism?
- 1Use the wording this chapter gives for magnet.
- 2The book says: free to move, its north pole orients itself toward the geographic North Pole of Earth, and the south pole orients itself toward the geographic South Pole of Earth.
- 3Do not use the meaning of right-hand rule. That term means rule involving curling the right-hand fingers from one vector to another; the direction in which the right thumb points is the direction of the resulting vector.
Result: free to move, its north pole orients itself toward the geographic North Pole of Earth, and the south pole orients itself toward the geographic South Pole of Earth
Why. That is the meaning this chapter gives for magnet.
Do not swap magnet and right-hand rule. magnet means free to move, its north pole orients itself toward the geographic North Pole of Earth, and the south pole orients itself toward the geographic South Pole of Earth. right-hand rule means rule involving curling the right-hand fingers from one vector to another; the direction in which the right thumb points is the direction of the resulting vector.
Practice margin
This chapter
A fresh set from this chapter only. Choose 10 or 20. Multiple choice and fill-in, with no repeat inside the set.