Earth’s Magnetism
Physics ⇒ Electricity and Magnetism
Earth’s Magnetism starts at 9 and continues till grade 12.
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See sample questions for grade 9
Describe the effect of the Earth’s magnetic field on a compass needle.
Describe what would happen if the Earth’s magnetic field disappeared suddenly.
Explain the term ‘magnetic meridian’.
Explain what is meant by magnetic declination.
Explain why a freely suspended magnet always points in the north-south direction.
Explain why the Earth’s magnetic field is important for life on Earth.
Name the three elements of the Earth’s magnetic field.
What is the approximate value of the angle of dip at the magnetic equator?
What is the direction of the Earth’s magnetic field at the magnetic equator?
What is the main difference between the geographic north pole and the magnetic north pole?
What is the main reason for the existence of Earth’s magnetic field?
What is the name of the imaginary line joining the north and south magnetic poles of the Earth?
What is the significance of the horizontal component of the Earth’s magnetic field?
What is the value of the angle of dip at the magnetic poles?
