Magnets and magnetic fields

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Question 21
Medium
a.

A dipping compass is a compass whose needle is pivoted vertically, allowing it to measure the angle of the Earth's magnetic field relative to the horizontal.

Describe how the orientation of the needle of a dipping compass changes when it is moved from the Earth's magnetic equator to the North Magnetic Pole.

[2]
b.

What does this behavior suggest about the magnetic properties of the Earth as a whole?

[1]
c.

A student wants to investigate the magnetic field of a permanent bar magnet using a plotting compass.

A horizontal bar magnet with the North pole (labeled 'N') on the left and the South pole (labeled 'S') on the right, resting flat on a large white sheet of paper. A small circular plotting compass with a pivoting needle is shown nearby.

Describe how the student can use the plotting compass to map the shape of the magnetic field lines around the bar magnet.

[3]
d.

Describe the pattern and direction of the magnetic field lines that would be sketched around the bar magnet shown in the diagram.

[2]

Magnets and magnetic fields Questions

  1. GCSE
  2. /Physics
  3. /Magnets and magnetic fields