| A | B |
|---|
| electrical circuit | a route along which electricity can flow |
| potential energy | the energy of a system due to its positions in a force field |
| electric potential energy | energy per unit charge |
| battery | an electronic device serving as a source of electrical power |
| resistor | a conductor whose function is to control the current in a circuit |
| coulomb (C) | the SI unit of charge |
| coulomb (C) | one coulomb (1 C) is approximately equal to the charge of a lightning bolt |
| coulomb (C) | the charge of 6.25 x 10 <sup>18</sup> electrons |
| current | the rate of flow of electric charge |
| current | the number of coulombs passing a point in one second |
| voltage | the energy (in joules0 for each coulomb of charge |
| volt (V) | the SI units of electric voltage or potential |
| volt (V) | one volt is equal to one joule per coulomb (1 V = 1 J/C) |
| joule (J) | the SI unit of energy |
| ampere | the SI unit of current |
| ampere | one ampere is the flow of one coulomb/second (1 A = 1 C/s) |
| series circuit | a circuit in which the current flows in a straight line |
| series circuit | has the same current flowing through all the resistors |
| watt (W) | the SI unit of power |
| watt (W) | one watt is equal to one joule per second (1 W = 1 J/s) |
| parallel circuit | a circuit that provides separate paths for current to travel through each resistor |
| parallel circuit | the same voltage is provided to each resistor |
| electric charge | a fundamental property of matter |
| electric charge | charge is either positive or negative |
| proton | a positively charge particle with a charge of 1.6 x 10<sup>-19</sup> C and a mass of 1.7 x 10<sup>-27</sup> kg |
| electron | a negatively charged particle with a charge of 1.6 x 10<sup>-19</sup> C and a mass of 9.1 x 10<sup>-31</sup> kg |
| ohm | the SI unit of electrical resistance |
| ohm | the symbol for ohm is (Ω) |
| What are the power transformations of a lightbulb? | electrical energy to heat and light |
| a volt measures | how miuch electrical energy each columb gets |
| an ampere measures | the "speed" or current of a circut |
| a watt measures | the power of a circuit |
