Question

3. Explain why one side of the single magnet attracted the metal surface, but repelled the stack of magnets.

4. What orientation of the magnets gives the strongest repulsion or attraction? Why do you think that is the case? What must be true of the magnetic field at those locations compared to other locations around the magnet?

5. If you cut a bar magnet in half, are the two halves still magnets? Explain your reasoning

.6. How does the magnet attract something that is originally non-magnetic?

Answer 1

3. It is because magnet magnetise the metal surface when magnet is bring close to a metal thus it induced opposite pole on metal and thus attract. But on the other hand when a magnet is bring closer to a stack of magnets then it repel the opposite poles.

4. Strongest repulsion happens when like poles are nearer to each other . For example when north north poles comes closer to each other. It is because force of repulsion depends upon distance between poles. At that point a neutral point exist meaning there exist a point where net magnetic field is zero.

5. Yes when two bar magnets are cut into two half then two halves are still magnets. it is because magnetic do not exist we can't extract magnetic poles by cutting magnets.

6. It does by magnetising that object . When we bring magnet closer to a nonmagnetic substance the magnet induces some magnetisation in that nonmagnetic substance. this way magnet attract a nonmagnetic material.