Magnetic Field and Field Lines
Physics ⇒ Electricity and Magnetism
Magnetic Field and Field Lines starts at 8 and continues till grade 12.
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See sample questions for grade 8
A student places a compass near the center of a bar magnet and observes that the needle does not point in a definite direction. Explain why.
Describe how the pattern of magnetic field lines changes when two opposite poles of two bar magnets are brought close together.
Describe how the strength of the magnetic field changes as you move from the center of a bar magnet to its pole.
Describe what happens to a compass needle when it is placed near a bar magnet.
Describe what happens to the magnetic field lines when two like poles of two bar magnets are brought close together.
Explain why a magnetic field is considered a vector quantity.
Explain why iron filings align themselves along magnetic field lines when sprinkled around a magnet.
Explain why magnetic field lines never cross each other.
Explain why the earth’s geographic north pole is actually a magnetic south pole.
If you sprinkle iron filings around a bar magnet, what pattern do you observe?
What happens to the strength of the magnetic field as you move farther from a magnet?
What is a magnetic field?
