WorksheetsElectronics Lexicon
Total questions: 59
Worksheet time: 30mins
'Analog(ue)' in the context of electronics refers to:
A signal that varies continuously over time.
A signal that has only two levels, on and off.
A digital representation of data.
A type of wireless communication.
'Control Points' in electronics are defined as:
Specific locations in a circuit where measurements or adjustments are made
Points where power is generated in a circuit
Areas where heat is dissipated in a circuit
Locations where signals are transmitted wirelessly
The 'Conventional Approach' in electronics is defined as:
The direction of current flow from positive to negative terminal
The use of alternating current in circuits
The flow of electrons from negative to positive terminal
The use of digital signals only
Define 'Digital' in the context of electronics.
Digital refers to signals or systems that use discrete values, typically represented by binary numbers.
Digital refers to signals that vary continuously over time.
Digital refers to analog signals used in traditional radios.
Digital refers to mechanical systems with moving parts.
An embedded system is defined as:
A computer system designed to perform dedicated functions within a larger system.
A general-purpose computer used for multiple tasks.
A system that only processes data for entertainment purposes.
A network server used for cloud computing.
Floating Point Math in electronics is defined as:
A method of representing real numbers that can support a wide range of values using a floating decimal point.
A way to store only integer values in memory.
A technique for converting analog signals to digital signals.
A process for amplifying electrical signals.
Define 'Floating Voltage'.
A voltage that is not referenced to ground or any other specific potential.
A voltage that is always zero in a circuit.
A voltage that is only present in AC circuits.
A voltage that is fixed and cannot change.
A 'Pull Down Resistor' is defined as:
A resistor connected between a signal line and ground to ensure a low logic level when no active device is driving the line.
A resistor connected between a signal line and the supply voltage to ensure a high logic level.
A resistor used to limit current in a circuit.
A resistor used to increase the voltage in a circuit.
A 'Pull Up Resistor' is defined as:
A resistor connected between a signal line and a positive voltage to ensure a default high logic level.
A resistor used to limit current in an LED circuit.
A resistor that pulls a signal line to ground to ensure a default low logic level.
A resistor used to increase the resistance of a circuit.
Pulse Width Modulation is defined as:
A technique used to encode a message into a pulsing signal by varying the width of the pulses.
A method for increasing the frequency of a signal.
A process for amplifying electrical signals.
A way to convert digital signals into analog signals.
Define 'Breadboard'.
A breadboard is a device used to build and test electronic circuits without soldering.
A breadboard is a type of kitchen appliance used for slicing bread.
A breadboard is a software tool for programming microcontrollers.
A breadboard is a measuring instrument for electrical resistance.
An Integrated Circuit is defined as:
A set of electronic circuits on a small chip of semiconductor material.
A mechanical device used for switching electrical signals.
A type of battery used in portable devices.
A wire used to connect different components in a circuit.
Define 'Jumper' in electronics.
A wire or connector used to close, open, or bypass part of an electrical circuit.
A device that increases the voltage in a circuit.
A resistor used to limit current in a circuit.
A switch used to turn a circuit on or off.
A Light Emitting Diode is defined as:
A semiconductor device that emits light when an electric current passes through it.
A device that stores electrical energy for later use.
A type of resistor that changes resistance with light.
A device used to amplify electrical signals.
Define 'Potentiometer'.
A device used to measure and compare electric potential (voltage) between two points.
A device used to measure temperature.
A device used to measure current in a circuit.
A device used to amplify sound signals.
A 'Printed Circuit Board' is defined as:
A board used to mechanically support and electrically connect electronic components using conductive pathways.
A device that generates electrical signals for communication.
A type of battery used in portable electronics.
A software program for designing circuits.
A resistor is defined as:
A device that opposes the flow of electric current.
A device that stores electrical energy.
A device that amplifies electrical signals.
A device that converts electrical energy into light.
A semi-conductor is defined as:
A material with electrical conductivity between that of a conductor and an insulator.
A material that does not conduct electricity at all.
A material that conducts electricity better than metals.
A material that only conducts electricity at absolute zero.
A 'Sensor' in electronics is defined as:
A device that detects and responds to physical input from the environment.
A device that stores electrical energy for later use.
A device that amplifies electrical signals.
A device that converts AC to DC power.
Define 'Voltage Regulator'.
A device that maintains a constant output voltage regardless of input voltage or load changes.
A device that increases the current in a circuit.
A device that stores electrical energy for later use.
A device that converts AC to DC.
What is an integrated circuit (IC)?
A set of electronic circuits on a small flat piece of semi-conducting material
A type of battery
A mechanical device
A type of wire
What material is usually used to make an integrated circuit?
Copper
Silicon
Plastic
Iron
Name one function that an integrated circuit (IC) can perform.
Amplification
Painting
Cooking
Sewing
What is a semi-conductor? A semi-conductor is a material with electrical conductivity that falls between that of a _______ (like copper) and an _______ (like glass).
conductor, insulator
insulator, conductor
metal, non-metal
liquid, solid
Which of the following statements is TRUE about semi-conductors?
They have higher conductivity than conductors
They have lower conductivity than insulators
Their conductivity falls between that of conductors and insulators
They are not used in electronics
Transistors made from semi-conductors can amplify signals and switch electronic signals on and off.
True
False
A resistor is a passive electrical component that ______ or regulates the flow of electrical current in an electronic circuit.
limits
generates
amplifies
stores
A Voltage Regulator is an electronic device or circuit that maintains a constant output voltage level regardless of variations in ________ or load conditions.
input voltage
output current
temperature
frequency
Which of the following best describes the function of a Voltage Regulator?
It increases the current in a circuit
It maintains a constant output voltage level regardless of variations in input voltage or load conditions
It decreases the resistance in a circuit
It stores electrical energy
What is a Printed Circuit Board? A Printed Circuit Board is a flat board used for mounting and interconnecting ________ components. It is made of a non-conductive material with conductive pathways etched or printed onto its surface to form electrical connections between components. Often there are many layers laminated together.
electronic
mechanical
hydraulic
optical
Which of the following best describes a Printed Circuit Board?
A flat board used for mounting and interconnecting electronic components
A device for storing electrical energy
A tool for measuring voltage
A type of wire used in circuits
What is an embedded system? An embedded system is a special computing system that performs ________ functions or tasks within a larger system.
dedicated
random
temporary
shared
Which of the following statements is true about embedded systems?
They perform general purpose computing tasks.
They are designed to perform specific tasks, often with real time computing constraints.
They are not part of a larger system.
They do not have any computing constraints.
Signals or information that vary continuously over time and can take on any value within a given range are called ________ signals. This contrasts with digital signals, which have discrete levels or states.
analog(ue)
binary
quantized
discrete
Which type of signals vary continuously over time and can take on any value within a given range?
Analog(ue) signals
Digital signals
Binary signals
Pulse signals
What is the definition of 'Digital'? Digital signals or information are represented in ______ levels or states and typically use binary numbers (1s and 0s).
discrete
continuous
analog
variable
Which of the following best describes 'Digital' signals or information?
They are represented in continuous levels or states
They are represented in discrete levels or states and typically use binary numbers (1s and 0s)
They use only decimal numbers
They are always analog
A ______ is a short wire or small connector used to close, open, or bypass part of an electrical circuit on a printed circuit board or other electronic device.
Jumper
Resistor
Capacitor
Inductor
What is the definition of Floating Point Math? Floating Point Math is a method used for representing and performing arithmetic operations on ________ numbers in computers.
real
integer
complex
imaginary
Which of the following best describes Floating Point Math?
A method used for representing and performing arithmetic operations on real numbers in computers.
A method used for storing text data in computers.
A method used for representing colors in graphics.
A method used for encrypting data.
What does the acronym PWM stand for?
Pulse Width Modulation
Power Watt Meter
Phase Wave Measurement
Programmable Waveform Module
Pulse Width Modulation (PWM) is a technique used in electronics and communication systems to encode information in the form of:
a pulsing signal
a constant voltage
a digital code
a magnetic field
In Pulse Width Modulation, the width of the pulse is varied while keeping the ______ constant.
frequency
amplitude
phase
duty cycle
On a micro-controller, ________ are the points that refer to the specific registers or memory locations that are used to configure and control various aspects of the micro-controller’s operation.
control points
data buses
power pins
interrupt lines
Which of the following best describes 'Control Points' on a micro-controller?
Points that store data permanently
Points that refer to specific registers or memory locations used to configure and control the micro-controller’s operation
Points that generate power for the micro-controller
Points that connect the micro-controller to the internet
A breadboard is a tool used for prototyping and testing electronic circuits without the need for _________
soldering
wires
resistors
batteries
Which of the following best describes the purpose of a breadboard?
To permanently connect electronic components
To test and prototype electronic circuits without soldering
To store electronic components
To measure electrical current
What is the definition of a sensor?
A device or component that detects and responds to some type of input from the physical environment or a system, and then converts this input into an electrical (as we are interested in), mechanical, or optical signal.
A device that only stores electrical energy for later use.
A component that exclusively measures temperature and humidity.
A system that generates random signals without any input.
A Light Emitting Diode (LED) is a ______ device that emits light when current goes through it.
semi-conducting
magnetic
insulating
mechanical
Which of the following statements is true about LEDs?
LEDs emit light when current goes through them.
LEDs allow current to flow in both directions.
LEDs are not a type of diode.
LEDs do not emit light.
LEDs only allow current to flow in one direction.
True
False
What is a potentiometer often abbreviated as?
pot
knob
res
wiper
A potentiometer is an electronic component that provides ______ resistance in an electrical circuit.
variable
constant
zero
infinite
Which part of a potentiometer moves along the resistive element?
knob
wiper
resistor
terminal
Physically, potentiometers often present as looking like a simple knob, with a resistor inside that may not be visible.
True
False
What is the Conventional Approach in electrical engineering?
The concept that current flows from negative to positive terminal
The concept fundamental for understanding how electrical components and circuits operate and interact, making the assumption that current flows from the positive terminal to the negative terminal of a source
The concept that current does not flow in a circuit
The concept that voltage is always constant
The Conventional Approach makes the assumption that current flows from the ______ terminal to the ______ terminal of a source.
positive; negative
negative; positive
neutral; positive
positive; neutral
In reality, current actually flows from the negative to the positive terminal.
True
False
Floating Voltage refers to a voltage that exists between ___ points in an electrical circuit or system without a direct electrical connection to a reference point, such as ground. It occurs when a point in the circuit is not connected to a definite voltage level or potential.
2
3
4
5
