Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 678 · 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.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
2. 2.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a battery torch (c) a plain table fan (d) a paper calendar
3. 3.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a fitness band with app (d) a wind-up clock
4. 4.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 8 minutes?
5. 5.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the sensor measures (d) the board reads it
6. 6.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
7. 7.🔍 Which is the odd one out? (a) a battery torch (b) a plain wall switch (c) an app-controlled bulb (d) a wind-up clock
8. 8.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) an app-controlled bulb (d) a pencil sharpener
9. 9.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the app shows it (d) the sensor measures
10. 10.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Internet of Things (d) Input of Tools
11. 11.🔍 Which is the odd one out? (a) a smart energy meter (b) a fitness band with app (c) a wind-up clock (d) a Wi-Fi smart plug
12. 12.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a hand fan (d) a candle in a jar
13. 13.🌐 In an IoT system, which part measures the real world? (a) sensor (b) phone app (c) microcontroller (d) Wi-Fi
14. 14.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
15. 15.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
17. 17.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) it is sent by Wi-Fi (c) the sensor measures (d) the cloud stores it
18. 18.What does the Wi-Fi link do? (a) measures the real world (b) reads values, decides (c) acts on a command (d) carries the data
19. 19.Which of these is an IoT device? (a) a pencil sharpener (b) a battery torch (c) a Wi-Fi smart plug (d) a plain wall switch
20. 20.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
21. 21.Which of these is not an IoT device? (a) a battery torch (b) a smart energy meter (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
22. 22.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) over Wi-Fi (d) through a candle
23. 23.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 10 minutes?
24. 24.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the cloud stores it (b) the app shows it
25. 25.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
26. 26.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) sensor (c) Wi-Fi (d) cloud server
27. 27.🌐 In an IoT system, which part shows data to you? (a) sensor (b) actuator (c) microcontroller (d) phone app
28. 28.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) Wi-Fi (c) actuator (d) microcontroller
29. 29.What does the microcontroller do? (a) carries the data (b) reads values, decides (c) stores data online (d) acts on a command
30. 30.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a fitness band with app (c) a smart energy meter (d) a plain table fan
31. 31.What does the phone app do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) shows data to you
32. 32.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
33. 33.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a paper calendar (c) a plain wall switch (d) a battery torch
34. 34.What does the actuator do? (a) carries the data (b) acts on a command (c) reads values, decides (d) measures the real world
35. 35.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
36. 36.What does the cloud server do? (a) acts on a command (b) measures the real world (c) shows data to you (d) stores data online
37. 37.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a paper calendar (c) a smart energy meter (d) an app-controlled bulb
38. 38.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the app shows it (b) the sensor measures
39. 39.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 7 minutes?
40. 40.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?

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