Practice A3.4 Introduction to electronic systems (HL only) with authentic IB Design Technology (First Exam 2027) exam questions for both SL and HL students. This question bank mirrors Paper 1, 2, 3 structure, covering key topics like materials and processes, product design, and sustainability. Get instant solutions, detailed explanations, and build exam confidence with questions in the style of IB examiners.
Paper
Level
Question 1
HLPaper 2
A company is designing everyday electronic devices for public and home use that integrate basic input and output systems to improve usability and efficiency.
1.[1]
They start with a digital bathroom scale that uses a strain gauge to sense weight and display results.
i.) What type of input component is a strain gauge?
2.[2]
ii.) Outline two roles of the microcontroller inside the digital scale.
3.[1]
To promote hygiene in public bathrooms, the company develops a touchless automatic faucet system using infrared sensing.
i.) Identify the type of output component used to release water.
4.[3]
ii.) Explain how the electronic system ensures water only flows when hands are detected.
5.[4]
In a final product concept, they create a kitchen appliance that uses a capacitive touch panel and piezo buzzer to improve safety and control.
Describe how the capacitive touch panel and piezo buzzer work together to improve user experience.
6.[6]
Evaluate the advantages and limitations of using capacitive sensors and piezo buzzers in high-use home appliances.
Question 2
HLPaper 1
How does a digital system process and use information?
Question 3
HLPaper 1
What does this diagram most likely represent in an electronic system?
Question 4
HLPaper 1
The operational amplifier in this image is mainly used to:
Question 5
HLPaper 1
What does the comparison in the image best demonstrate?
Question 6
HLPaper 2
1.[4]
Describe the purpose of four passive electronic components in a circuit.
Question 7
HLPaper 1
Which symbol would typically represent a resistor in a circuit diagram?
Question 8
HLPaper 2
1.[6]
Describe how an analogue system works using voltage, current, resistance, and SI units.
Question 9
HLPaper 1
Which concept is best illustrated by this waveform graph?
Question 10
HLPaper 2
1.[2]
Describe the four basic elements of an electronic system.