Magnetic Fields Flashcards

All 5 cards in this deck

In which direction do the magnetic field lines around a bar magnet point?

Out of the north pole, round and into the south pole.

Where is the magnetic field of a bar magnet strongest, and how do the field lines show this?

Just outside the poles (N and S), where the field lines are closest together — closer lines mean a stronger field.

Describe the field lines of a uniform magnetic field.

Straight, parallel and equidistant lines, all in the same direction — the field has the same strength everywhere.

What are the steps to use one plotting compass to find the shape and direction of a magnetic field?
e.g. around a bar magnet on paper

  1. Place the compass near the magnet and mark the direction of the needle.
  2. Move the compass on to continue the field from that mark.
  3. Join the marks to reveal the overall field shape.

What is a magnetic field?

The space around a magnet in which a magnetic material, or another magnet, is pushed or pulled by a magnetic force.