Magnetism

Question 1

a fundamental property of some forms of matter. objects are known to attract iron fillings.

Answer 1

Magnetism

Question 2

vector field that describes the magnetic influence of electrical currents and magnetized materials.  The motion of orbital electrons and their spins, in the opposite direction.

Answer 2

Magnetic Field

Question 3

is a region created by the accumulation of many atomic magnets with their dipoles aligned.

Answer 3

Magnetic Domain

Question 4

is a consequence of the electromagnetic force, one of the four fundamental forces of nature, and is caused by the motion of charges. Two objects containing a charge with the same direction of motion have a magnetic attraction force between them.

Answer 4

Magnetic Force

Question 5

Like poles repel, unlike poles attract

Answer 5

Magnetic Law

Question 6

As moving charges create magnetic fields, so they experience forces from magnetic fields generated by other materials. The magnitude of the force experienced by a particle traveling in a magnetic field depends on the charge of the particle (q), the velocity of the particle (v), the strength of the field (B), and, importantly, the angle between their relative directions (θ):

Answer 6

Lorentz Force

Question 7

An example is the Earth. Lodestone has been exposed to Earth’s magnetic field for a long time and has developed a strong magnetism.

Answer 7

Natural Magnet

Question 8

Usually made of iron. Made by aligning their domains in the field of an electromagnet.

Answer 8

Permanent Magnet

Question 9

Consists of wire wrapped around an iron core. When an electric current is conducted through the wire, a magnetic field is created.

Answer 9

Electromagnets

Question 10

Materials that are unaffected by magnetic field.

Ex. Wood, glass

Answer 10

Nonmagnetic

Question 11

Materials that are weakly repelled by magnetic fields. They cannot be artificially magnetized, and they are not attracted to a magnet.

Answer 11

Diamagnetic

Question 12

Materials that lie somewhere between ferromagnetic and nonmagnetic. They are slightly attracted to a magnet and loosely influenced by an external magnetic field.
Ex. Gadolinium - contrast agents used in MRI, platinum, aluminum

Answer 12

Paramagnetic

Question 13

Strongly attracted to magnets or magnetic materials and usually can be permanently magnetized by exposure to a magnetic field.

Answer 13

Ferromagnetic