7th Grade PLTW Electronics Key Term Quiz

An electric current that reverses its direction many times a second at regular intervals, typically used in power supplies.

• Alternating Current
• Direct Current
• Indirect current
• Wavy Current

A container consisting of one or more cells, in which chemical energy is converted into electricity and used as a source of power.

• Jar
• Battery
• Motor
• Lamp

A device used to store an electrical charge.

• Capacitor
• Thermistor
• Resistor
• Switch

A graphical representation of an electrical circuit (pictures of components)

• Circuit Diagram
• Electronic Circut
• Schematic
• Symbol

A part or piece of a larger device/machine

• Module
• Element
• Component
• Sector

A two-terminal electronic component that conducts current in only one direction.

• Diode
• Light Emitting Diode
• Transistor
• Resistor

An electric current that flows in only one direction.

• Direct Current
• Indirect Current
• Alternating Current
• Electron Current

A group of electronic components that work together to perform a specific function.

• Closed Circuit
• Open Circuit
• Electronic Circuit
• Parallel Circuit

A resistor that has a value that cannot be changed.

• Fixed Resistor
• Variable Resistor
• Thermistor
• Transistor

A semiconductor diode which glows when current is applied.

• Diode
• Light Emitting Diode
• Transistor
• Resistor