How does the LED work?
The LED works by putting the short end connecting to the negative side of the battery pack, and the long end connecting to the positive side of the battery pack, which powers the light.
Sharing Current Explained
all the currents are divided into different LEDs then if you unplug one of the bottom wires it will turn off the ugly LED segments but you plug it in it will turn them back on
How the motor gearbox works
The motor turns the small gear and that turns the big gear but you have to turn the little gear many times to turn the big gear.
About the NPN Circuit Pt 2
the voltage goes thru a resistor to the collector pin of the transistor and there is another resistor that goes to the negative bus of the breadboard. there is also voltage going to the base pin of the resistor which completes the circuit by telling the emitter pin to send out voltage.
About the Pushbutton LED Circuit
when the push button is pushed the circuit it closed makeing it turn on but when the push button is not pushed the circuit open makeing it turn off
What is the terminal strip of the breadboard?
There are two terminal strips. One is from A to E and the other is from F to J. The holes within each terminal are connected vertically.