Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 113 · 40 questions

Remember (Sense, send, store, show): IoT device = an everyday thing that shares data over the internet (usually Wi-Fi and an app). Data flow: sensor → board → Wi-Fi → cloud → app (and commands back to an actuator). Readings sent = total time ÷ time between readings, in the same units.

1. 1.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the cloud stores it (b) the sensor measures
2. 2.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
3. 3.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain table fan (c) a Wi-Fi smart plug (d) an app-controlled bulb
4. 4.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 30 readings take?
5. 5.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
6. 6.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
8. 8.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
9. 9.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
10. 10.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a smart energy meter
11. 11.🏠 Which is a smart-home example? (a) lights on from an app (b) a candle in a jar (c) a hand fan (d) a printed map
12. 12.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
13. 13.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 150 readings take?
14. 14.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a fitness band with app
15. 15.Which of these is not an IoT device? (a) a wind-up clock (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) an app-controlled bulb
16. 16.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a fitness band with app (d) a paper calendar
17. 17.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a plain wall switch (d) a Wi-Fi doorbell camera
18. 18.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) sensor (c) actuator (d) phone app
19. 19.🔍 Which is the odd one out? (a) a paper calendar (b) a wind-up clock (c) an app-controlled bulb (d) a plain wall switch
20. 20.🔍 Which is the odd one out? (a) a battery torch (b) a wind-up clock (c) a plain wall switch (d) a smart energy meter
21. 21.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the board reads it (b) the sensor measures
22. 22.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) it is sent by Wi-Fi
23. 23.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
24. 24.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
25. 25.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
26. 26.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the board reads it (c) it is sent by Wi-Fi (d) the cloud stores it
27. 27.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a battery torch
28. 28.🌐 In an IoT system, which part carries the data? (a) phone app (b) cloud server (c) sensor (d) Wi-Fi
29. 29.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
30. 30.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
31. 31.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) through a candle (d) over Wi-Fi
32. 32.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 190 readings take?
33. 33.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the cloud stores it
34. 34.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the app shows it (b) the sensor measures
36. 36.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
37. 37.🔍 Which is the odd one out? (a) a plain table fan (b) a plain wall switch (c) a Wi-Fi weather station (d) a wind-up clock
38. 38.Which of these is not an IoT device? (a) a fitness band with app (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a plain wall switch
39. 39.What does the microcontroller do? (a) measures the real world (b) shows data to you (c) reads values, decides (d) carries the data
40. 40.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a plain table fan (d) a Wi-Fi smart plug

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