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High school physics - NGSS

Unit 2: Lesson 3

Electric and magnetic fields

Magnetism and magnetic fields

NGSS.HS:
HS‑PS2‑4
,
HS‑PS2‑5
,
HS‑PS2.B.2
,
HS‑PS2.B
,
HS‑PS2
Forces at a distance are explained by fields (gravitational, electric, and magnetic) permeating space that can transfer energy through space. Magnets or electric currents cause magnetic fields; electric charges or changing magnetic fields cause electric fields. Created by Sal Khan.

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• At , why does this happen?
(1 vote)
• There's not a reason yet, but here is my hypothesis: the universal law is that things must be as close to equilibrium as possible. water will fill empty space to be completely smooth, every force exerts an equal and opposite force, cold and warm air will balance each other out, air pressure will "even" itself out to be consistent with the rest of the air around them, etc.

This, I hypothesize, also must be congruent with magnets.

Let's say I broke the magnet and took one of the sides; the left one, or in the video, the "north." This "north" side becomes "out of place" in nature and needs to be "brought to order." This causes the magnet to "create" a new south pole via shifting the molecular construction of the magnet to compensate for the "error" that took place. This also happens with water: when you take water out of a bowl, water comes back and fills back up the space; the "hole" taken out of the water doesn't stay there. If it did, it would be more like taking cream cheese from the box, where the space that the cream cheese previously resided in becomes empty, the cheese not filling the space. However, breaking cream cheese is not breaking a universal law.

Feel free to comment on my "hypothesis"

Hope this helps!