Would electrical reactance and physical inertia be appropriate general analogies? Each is a resistance to change. I've thought of trying to construct a table of similarities between disciplines to speed and clarify understandings as courses seemed to converge on these evaluations.
Would electrical reactance and physical inertia be appropriate general analogies?
Yes, a mass-spring system has exactly the same energy, impedance, displacement, force equations as an LC system has energy, impedance, charge and voltage equations.
Constructing a table of all the equivalent variables is a good way to learn and explore.
There are plenty of examples on the web to cross-check your work as you progress.
Take care to match pressure-like things as voltage and pressure, displacement-like things like distance and charge, and speed-like things like current and speed, to get the best correspondence between mechanical and electrical.