Across
- 1. the ability to work
- 3. the amount of electric potential energy per one coulomb of charge at one point in a circuit compared to the potential energy per coulomb of charge at another point in the circuit; also called voltage
- 5. the mathematical relationship comparing voltage (V), current (I), and resistance (R), written as R=V/I
- 8. any device that transforms electrical energy into other forms of energy, such as a light bulb, buzzer, heater, and motor
- 9. the amount of electric potential energy per one coulomb of charge at one point in a circuit compared to the potential energy per coulomb of charge at another point in the circuit; also called potential difference
- 11. electric energy stored in a battery
- 14. the amount of charge passing a point in a conductor every second
- 16. unit for measuring electric current; very small currents are measured in milliamperes (mA); 1 A = 1000 mA (8.2)
- 17. two terminals in a battery or other electricity source; usually made of two different metals but can be a metal and another material
Down
- 1. the ratio of voltage to current
- 2. the unit of measurement for electrical resistance
- 4. a complete pathway that allows electrons to flow
- 6. the continuous flow of charge in a complete circuit
- 7. a drawing using symbols to represent the different components of a circuit
- 9. the unit of potential difference; one volt causes a current of one ampere to flow through a conductor with a resistance of one ohm
- 10. electrodes in electrolytes that convert chemical energy into electrical energy stored in charges; also called batteries
- 12. substance that conducts an electric current. In a dry cell, the electrolyte is a moist paste; in a wet cell, the electrolyte is a fluid
- 13. an electrical component with a set amount of resistance that slows down current and transforms electrical energy into other forms of energy
- 15. the property of any material that slows down the flow of electrons and converts electrical energy into other forms of energy