yes
Yes. They don't have actual magnets, but they do have "magnetic fields". Other planets with magnetic fields are Mercury, Jupiter, Saturn, Uranus and Neptune.
Faraday showed that a wire passing through a magnetic field will produce electricity. This is how a generator works. Many windings of wire on an armature spin in a magnetic field. This makes electricity.
Maxwell's equations state that electric fields create magnetic fields, and vice versa. If you have a current, you have a magnetic field. If you have magnets, you have an electric field.
Yes.
Magnets and electric motors are similar in that they both produce magnetic fields.
They will combine to make a single magnetic field.
Yes! It should. Since the magnets, irrespective of external magnetic fields, have their own magnetic field. Vacuum or Air pressure, quality, etc also don't effect the magnetic fields of magnets. Hence, depending on Negative or Positive side of the magnets, when brought together, it will attract or repel accordingly!!
Ferro magnetic materials (those attracted to magnets) have a special arrangement of their electrons which makes them susceptible to magnetic fields. Materials without this special electron structure are not affected my magnets or electric fields in the same way.
Ferro magnetic materials (those attracted to magnets) have a special arrangement of their electrons which makes them susceptible to magnetic fields. Materials without this special electron structure are not affected my magnets or electric fields in the same way.
Magnets can retain a permanent magnetic field. All atoms have a magnetic field which are randomly arranged in the object. Magnets and ferrous metals can retain or temporarily align the atomic fields, thus they are magnetic.
Near magnets. This includes conductors that carry electrical currents.
Compasses, Earth movement or Magnetic Fields. Pick your poison.