| A | B |
|---|
| LED | light emitting diode |
| component | part of an object |
| polarized | only allow electricity to flow in one direction |
| anode | longer leg of a LED |
| cathode | shorter leg of a LED |
| resistor | converts some electrical energy into heat |
| switch | interrupts flow of electricity |
| pushbuttons | momentary switches, only closed when pressure applied |
| temperature sensor | changes voltage depending on temperature |
| tilt sensor | switch that opens or closes depending on orientation |
| USB cable | allows you to connect a device to your computer |
| photoresistor | changes its resistance depending on amount of light |
| ohms | unit used to measure resistor values |
| LCD | liquid crystal display |
| parallel circuit | components in this circuit run side by side |
| series circuit | components come one after the other |
| power source | thing that provides energy to your system |
