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chapter 8 vocab
Question | Answer |
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amperes | a unit of electric current equal to a flow of one coulomb per second |
circuit diagrams | a diagram of a circuit |
current electricity | dynamic electricity a flow of electric charge |
electric circuit | an electrical device that provides a path for electrical current to flow |
electric current | a flow of electricity through a conductor; |
electric load | the circuit connected to this terminal is the load |
electric potential difference | Voltage, electrical potential difference, electric tension or electric pressure is the electric potential difference between two points, or the difference in electric potential energy of a unit charge transported between two points |
electrical resistance | electric resistance: a material's opposition to the flow of electric current; measured in ohms |
electrochemical cells | An electrochemical cell is a device capable of either deriving electrical energy from chemical reactions |
electrodes | a conductor through which electricity enters or leaves an object, substance, or region |
electrolyte | a liquid or gel that contains ions and can be decomposed by electrolysis, e.g., that present in a battery |
energy | the strength and vitality required for sustained physical activity |
ohm | the unit used to measure resistance |
Ohm's law | electric current is directly proportional to voltage and inversely proportional to resistance; I = E/R |
potential difference | the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors. |
resistance | the ability not to be affected by something |
resistor | a device having a designed resistance to the passage of an electric current. |
volt | the SI unit of electromotive force, the difference of potential that would drive one ampere of current against one ohm resistance. |
voltage | an electromotive force or potential difference expressed in volts |