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<p>I wouldn’t necessarily say that. I’d say there’s more mathematical rigor in E&M, but both courses are both math-intensive and physics-intensive. Both have some easier topics and both have harder topics.</p>
<p>The big difference between Mech and E&M is that Mech is more physical (no pun intended), as it describes motion of objects that you can see, while E&M is more abstract (i.e. you can’t see magnetic fields, but rather only their effects). Some people find that, along with a bit more intensive math, makes E&M the more difficult of the two courses (though both get roughly the same percentage of 5’s on the AP exam).</p>