Earth’s Magnetic Field
Physics ⇒ Earth and Space Physics
Earth’s Magnetic Field starts at 8 and continues till grade 12.
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See sample questions for grade 9
Define magnetic declination.
Describe how the Earth's magnetic field helps migratory animals.
Describe what happens to a compass needle at the magnetic equator.
Describe what is meant by 'magnetic inclination' or 'dip'.
Explain the difference between the magnetic equator and the geographic equator.
Explain why compasses do not always point exactly to the geographic north pole.
Explain why the Earth's magnetic field is important for life on Earth.
Explain why the Earth's magnetic field is not perfectly aligned with its rotational axis.
If a compass is placed at the magnetic south pole, in which direction will the needle point?
If the magnetic declination at a location is 10° east, in which direction should a navigator adjust their compass reading to find true north?
What is the angle called between the geographic north and the magnetic north at a given location?
What is the effect of Earth's magnetic field on charged particles from space?
What is the main cause of Earth's magnetic field?
What is the main component of the Earth's outer core?
What is the main reason why Earth's magnetic field is not perfectly stable?
What is the name of the area where the Earth's magnetic field is weakest?
What is the name of the process by which Earth's magnetic field is generated?
What is the Van Allen radiation belt?
