How things work college course/Electricity and Field theory/Quiz

Ideas for Electronics conceptual

1. current as electrons per second
2. voltage as potential energy per electron
3. potential energy as mgh AND/OR qV
4. bulbs and batteries: which bulb is dim?
5. ohm's law always true? (e.g. what about temperature effects)
6. parallel versus series
7. ideal versus actual batteries
8. resistance across a perfect ohmeter
9. current through a perfect voltmeter
10. hydrodynamic analog current, voltage, capacitor, membrane, energy in capacitor and inductor

20 questions #3

1

When you drop a rock just above Earth's surface, the downward force is called the ______ and the equation describing the force is _____

	gravitational potential ... mgh
	gravitational field ... mgh
	gravitational potential ... mg
	gravitational field ... mg
	gravitational potential energy ... mgh

2

If a battery is used to power a light bulb, the force is called the ______ and the equation describing the force is _____

	electric field ... qE
	electric potential ... qEℓ
	gravitational field;...mg
	electric potential ... mg
	electric potential energy ... mg

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