Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 865 · 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.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a Wi-Fi smart plug (d) a battery torch
2. 2.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the board reads it
3. 3.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
4. 4.🔍 Which is the odd one out? (a) a paper calendar (b) an app-controlled bulb (c) a pencil sharpener (d) a plain table fan
5. 5.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a paper calendar (c) a Wi-Fi doorbell camera (d) a fitness band with app
6. 6.What does the Wi-Fi link do? (a) carries the data (b) reads values, decides (c) measures the real world (d) shows data to you
7. 7.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
8. 8.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
9. 9.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) by post (d) through a candle
10. 10.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Internet of Things (d) Inside of Toys
11. 11.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
12. 12.Which of these is an IoT device? (a) a pencil sharpener (b) a wind-up clock (c) a paper calendar (d) a Wi-Fi doorbell camera
13. 13.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) a Wi-Fi weather station (d) a plain wall switch
14. 14.Which of these is an IoT device? (a) a wind-up clock (b) a fitness band with app (c) a plain wall switch (d) a battery torch
15. 15.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) a plain wall switch (d) an app-controlled bulb
16. 16.🌐 In an IoT system, which part acts on a command? (a) sensor (b) cloud server (c) phone app (d) actuator
17. 17.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the cloud stores it (d) the board reads it
18. 18.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) sensor (c) phone app (d) actuator
19. 19.What does the phone app do? (a) acts on a command (b) reads values, decides (c) shows data to you (d) stores data online
20. 20.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
21. 21.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a battery torch (d) a Wi-Fi doorbell camera
22. 22.Which of these is not an IoT device? (a) an app-controlled bulb (b) a smart energy meter (c) a Wi-Fi weather station (d) a wind-up clock
23. 23.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
24. 24.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) cloud server (c) microcontroller (d) sensor
26. 26.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
27. 27.What does the cloud server do? (a) stores data online (b) shows data to you (c) reads values, decides (d) carries the data
28. 28.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
29. 29.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
30. 30.What does the microcontroller do? (a) acts on a command (b) reads values, decides (c) carries the data (d) stores data online
31. 31.🔍 Which is the odd one out? (a) a fitness band with app (b) a wind-up clock (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
32. 32.🔢 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
33. 33.🔢 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
34. 34.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a Wi-Fi smart plug
35. 35.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) lights on from an app (d) a hand fan
36. 36.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
37. 37.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
38. 38.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) a fitness band with app (d) a battery torch
39. 39.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
40. 40.Which of these is not an IoT device? (a) a plain wall switch (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a smart energy meter

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