Did you say "fundamental forces of nature"? What is fundamental about them? Did you say weak and strong nuclear forces? - Learn about four fundamental interactions in nature.
Why do we need a review of Universal Gravitation? - what does it have to do with electricity? Did you say "gravitational charge"? - and an "electric charge"? - Learn about the concept of electric charge and two kinds of electricity and the Coulomb's Law.
You said "primary elements" and "building blocks of matter". Did you say "it's an ancient idea"? And you said "quark" - how is it different from an atom? - Learn about modern view on structure of matter and our Universe.
Did you say "anti-electron" and "anti-matter"? and "annihilation"? Oh, a vacuum is not a complete emptiness but may contain virtual particles? That's cool!
What do you mean by electric induction? You said that electric charge is discrete, what do you mean by that? - Learn about different way of electrifying objects and the units of electric charge.
How come the Coulomb's Law works for point charges? - Learn about approximations when solving problems using Coulomb's Law.
Did you say significant figures? - I do remember something about them in the the first part of Physics but not sure I fully understood - Learn how to correctly report data.
You confuse me with the notion of the "field of force"! What do you mean by saying the field is electric? Did you say a vector in each point of space? - Learn about the concept of field as physical quantity.
You said point test charge. Why must it be positive? And what is the source charge? I think I get the analogy with the spider, the web and the fly. - Distinguish between the charge creating the field and the charge experiencing the field.
What did you say about the direction of electric field? Is that a direction of the electric force that would act on a positive charge? What if we have a negative charge? - Learn about mathematical description of the electric field and how the field acts on different charges.
Did you say that field lines help us to visualize the electric field? Ah, I see. What is the direction of the lines? And what does the lines spatial density represent? The pictures of electric filed lines look very beautiful, like an art! - Learn about electric field lines and how to draw them.
Did you say lines start on positive charges and end on negative one? Did you say field lines do not cross? Why? Did you ask if the lines can create closed loops? - Learn about properties of electric field lines.
Oh, now you throw at us this notion of flux! What is this thing for? It looks it is too abstract for me! Did you say it can be useful? - Learn about the concept of the electric flux and how to calculate it.
These pictures are nice but I think I need to review geometry - all those shapes and closed surfaces ... Looks like real art, not physics! What you do is just to draw pretty lines ... Did you say count lines going in and out of the surface? What for? Umm ... back to calculations again?
Yeah, it looks really cool that the electric flux through a closed surface is independent of the surface's shape and is determined only by the charge surrounded by it. Did you say symmetry? - Learn the Gauss's Law and how symmetry can be used to calculate the electric fields.
No electric field inside conductors? That sounds strange! What drives electric charge in the conductor then? - Learn about shielding from an electric field.
This test charges again! That reminds me the way you defined the electric field intensity. Oh, they are related, huh? - Learn the definition of electric potential.
Did you say potential is the energy per charge? Did you say it specifies the electric field and has nothing to do with the test charge? Oh, it depends on the source charge! Hmm ... I am trying to comprehend that.
Did you say voltage is the same as potential difference? - Learn about equipotential lines and the way to calculate work done by the electric field.
What do you mean there cannot be a stable static equilibrium in the system of electric charges? How are the atoms stable then?
Did you say that a remarkable thing about potential is that it is a scalar? - Learn on how to use the concept of electric potential in solving problems.
You want to collect and store electric charge, huh? Did you say it started with the Layden Jar? - Learn about devices to store charge and the physical property of electric capacitance.
Why are there so many types of capacitors? Its gets confusing which formula to use to calculate the capacitance! Do you want us to remember all of them? What do you mean by charge density? - Learn about the way to calculate capacitance.
Now you talk about electrical energy. Oh, it depends on the capacitance! Yeah, of course, more charge - more energy.
Why do we need to study this electric dipole? Oh, it can mimic molecules! That's pretty cool but looks complicated ... at least from the first sight.
Did you say you can explain behavior of insulators in electric field? Did you say dielectric? Uff! - Learn about phenomena of polarization of dielectrics and what dielectric constant is.
Are you saying that electricity started with living things? Frogs' legs batteries? Yeah, this history is fascinating! - Learn about voltaic pile.
Ok, you want to measure the flow of charge, right? And you call it electric current, huh? It surely depends on the voltage. What else? Did you say resistance? And resistivity? Oh, God! - a new quantity to learn, and units! I feel I am getting lost! Did you say that it relates to electrical conductivity of the material? - Learn about Ohm's Law.
Well, it is not so bad! Superconductivity is cool!
Do you want to talk about electric meters? - Learn about measuring electric current with an ammeter and using voltmeter to measure voltage.
These electric circuits are fun! What else do you get there? - batteries, wires, electric bulbs, capacitors? Did you say "resistors"? Oh, your are abstracting!
Now you want us to see things from the energy perspective, right? Did you say "work done by electric current in the circuit"? Why do we need that? Learn about electric current generating heat.
Did you say electric power? How do you define it? You asked us "What do we pay the Con Edison for?" I thought for power, no?
What do you mean by DC, it is not District Columbia, is it? and AC? - Learn about direct current and alternating current.
What do you mean by type of connection? Did you say "series" and "parallel" connections? What is the difference? Oh, are you saying both have cons and pros? What are they? Did you say the "voltage is distributed"? and then the "current splits" - Learn about the way connecting components in an electrical circuit.
Did you mention that the splitting of current and voltage distribution relate to the conservation of charge and conservation of energy in electric circuit? That's make sense!
You mentioned equivalent resistance - what is that? You mentioned that we can combine different types of connections - does this makes computing the circuit harder? Who is Kirchhoff and what are his rules? - Learn about using the junction rule and loop rule to compute electrical circuits.
Electromotive force? Why do we need to learn this ancient term? You said that it is not a force! - You've got us confused with all those quantities!
Did you say "short circuit current"? Did you say it can be dangerous? Did you say "open circuit"? - Ok, now I understand the purpose of fuses and circuit breakers!
You want us to consider a capacitor in DC-circuit. Did you say the capacitor is charging? and discharging? And all that is driven by exponential law? Do we really need to know that? Did you say that we shall see real applications of that in AC-circuits? Uh, ok, we shall see...
I know what fridge magnets are. Did you ask me why they stick only to metal objects and not to plastic or wood? Well ... Hmm... - You said "magnetic poles", why not magnetic charges? - Learn about permanent magnets and magnetic poles.
Why does a compass needle point to the North direction? Did you say the Earth is a magnet? Oh, now you say magnetic field - what is it? - Learn about magnetic filed lines.
You didn't define the magnetic field intensity precisely - is it a force? No? Did you say that you are going to do that later?
Wow! Electric current creates magnetism? That's crazy! What if I move with the charge - will the magnetic field disappear? - Learn about Oersted's experiments.
And now you're saying that magnetic field exerts force on wires carrying electric current! In a weird direction, huh? Should I think 3D? - Learn about right-hand rules.
Those examples of bending electronic beams in magnetic fields are cool! Did you say "particle accelerators"? - Learn on applications of magnetism.
Did you say cosmic radiation is being trapped by the Earth's magnetic field? So the Earth keeps us protected from exposure to radiation! That is C-O-O-L! - Learn about radiation belts of the Earth.
It seems you are obsessed with that current loops! What makes them important? Oh, you said that the phenomena explains how electric motors work! Magnets create a torque on a current carrying loop, huh? - Learn how to transform electromagnetic energy into mechanical motion.
Did you say "magnetic moment"? What kind of new beast is that? I don't think my mind can't hold all those concepts! Did you say, it's easy? Well, not from the first glance. Did you say it's useful? Ok, ok ... - Learn about how to calculate the torque acting on a coil of wire that carries electric current.
Wow! - electron has this intrinsic magnetic moment? and other charged particles too? How did you call it - spin?
How did you call this thing? - Circulation of the field? Oh, this Amprer's Law reminds me the Gauss's Law in electricity. Similar but not quite the same ...
What did you say? - Electromagnet ? and ferromagnetism? - So many fancy words!
Ok, you are saying magnetic field has flux too - I can accept that. Did you say that moving magnets can generates electricity? - Learn about the Faraday's Law of electromagnetic induction and the Lenz's Rule.
Did you say "induced emf" ? What is that motion emf ? Did you say "magnetic battery"? and an electric generator?
Now you say that electric filed lines form closed loops - you confuse me! Oh, it is a different type of electric field! How did you call it? - electrodynamic vs electrostatic field?
Did you say the magnetic flux through a coil can be changed by rotating it in magnetic field? What do we achieve? Oh, we get an AC current in the coil? - Learn about principle of how electric generators work.
Did you say that produced current will have a harmonic nature? Oh, those sines and cosines! I hardly remember those functions? Did you say review them?
This root mean square thing is very confusing! Why do you call it such? Are you saying that this is what is measured by electric meters? Did you say the power oscillates as well? - Learn about how to describe alternating current.
How can a capacitor be used in a circuit? Will it stop the current because it breaks the current flow? No? Not in AC circuit? Well, can you say then that the capacitor passes AC current? - Learn about capacitors in AC circuit.
Did you say inductance, and then inductors? Aha, that's because there is a current induced in the coil! Did you say that the coil opposes the current flow? Oh, only in an AC circuit! Because it "does not like the change"! - Learn about mutual and self-inductance.
Why do we need to transform AC voltage? To transmit power? Ah, to save energy! - Learn about transformers and their applications to power transmission.
Convert an AC current into a DC one? Why? - Are you talking about a power adapter for a phone or laptop? - Learn about diodes and rectifiers.