Electricity Key Terms Crossword Puzzle

QUESTIONS LIST:

• current: the flow of electric charge through a conductor.
• voltage: the energy transferred per unit charge (potential difference).
• resistance: a measure of how much a component resists the flow of current.
• ohm: the unit of electrical resistance.
• ammeter: a device used to measure current in a circuit.
• series: a circuit where components are connected end-to-end, forming one loop.
• parallel: a circuit where components are connected across common points, forming multiple paths.
• charge: a property of particles; measured in coulombs.
• battery: two or more cells joined to provide electrical energy.
• conductor: a material that allows electric current to flow easily.
• insulator: a material that does not allow electric current to flow.
• ohms law: states that voltage = current × resistance (v = ir).
• power: the rate at which energy is transferred; measured in watts.
• watt: the unit of electrical power.
• fuse: a safety device that melts if the current is too high.
• circuit: a complete path for current to flow.
• switch: a device used to open or close a circuit.
• ldr: a resistor that changes resistance with light levels.
• thermistor: a resistor that changes resistance with temperature.
• resistor: a component that limits the flow of current.
• live wire: the wire in a plug that carries current to the appliance.
• neutral wire: the wire that completes the circuit back to the power source.
• earth wire: a safety wire that carries current away if there’s a fault.
• circuit breaker: a reusable safety device that trips if the current is too high.
• ac: alternating current; current that changes direction periodically.