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Electricity Chapter1
Chapter 1 vocabulary
Question | Answer |
---|---|
a property that allows one object to exert a force on another object without touching it | electric charge |
an area surrounding a charged object, whithin which the object can exert a force on another object without touching it | electric field |
the buildup of electric charge in an object caused by the uneven distribution of charged particles | static charge |
the buildup of an electric charge in an object when the object is close to, but not touching, a charged object | induction |
the amount of electric potenetial energy per unit charge that a static charge or electric current has | electric potential |
the unit of measurement for electric potentaial, which is equal to one joule per coulomb | volt |
a material that allows electric charge to pass through it easily | conductor |
a material that does not allow electric charge to pass throught it easily | insulator |
the property of a material that determines how easily a charge can move through it | resistance |
the unit of measurement for electrical resistance | ohm |
providing a harmless, low-resistance path for electicity to follow | grounding |
a continuous flow of electric charge, which is measured in amperes | electric current |
the unit of measurement of electric current, which is equal to one coulomb per second | ampere |
the mathematical relationship among current, voltage, and resistance, expressed in the formula I = V/R (current = voltage / resistancea | Ohm's law |
a device that produces electric current using the chemical or physical properties of different materials | electric cell |