Fuerza magnética

The video explains that magnetism is an electromagnetic force, not a fundamental force of nature. It originates from the movement of electric charges, such as the current in electromagnets or the intrinsic rotation of charged particles in atoms, which can cause some materials to be permanently magnetic.

Which of the following is NOT considered a fundamental force of nature?

• Weak nuclear force

• Electromagnetic force

• Strong nuclear force

• Gravitational force

What is the primary cause of magnetism?

• The gravitational pull of the Earth

• The alignment of atoms

• The movement of electric charges

• The presence of iron

How does the movement of electric charges relate to magnetism?

• It is the origin of magnetism

• It is unrelated to magnetism

• It weakens magnetic fields

• It only affects temporary magnets

Which of the following contributes to the permanent magnetism of some materials?

• The temperature of the material

• The intrinsic rotation of charged particles

• The color of the material

• The size of the material

What role does the intrinsic rotation of charged particles play in magnetism?

• It causes materials to lose their magnetic properties

• It has no effect on magnetism

• It only affects non-magnetic materials

• It contributes to permanent magnetism