Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 49 · 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 weather station sends one reading every 60 seconds. How many readings does it send in 5 minutes?
2. 2.🔍 Which is the odd one out? (a) a battery torch (b) a paper calendar (c) a Wi-Fi smart plug (d) a plain wall switch
3. 3.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
4. 4.Which of these is not an IoT device? (a) a smart energy meter (b) a pencil sharpener (c) an app-controlled bulb (d) a Wi-Fi weather station
5. 5.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
6. 6.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 90 readings take?
8. 8.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
9. 9.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a smart energy meter (d) a plain table fan
10. 10.🔢 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
11. 11.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
12. 12.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a candle in a jar (d) a hand fan
13. 13.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
14. 14.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
15. 15.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) a pencil sharpener (d) a fitness band with app
16. 16.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the sensor measures (c) the app shows it (d) the cloud stores it
18. 18.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 180 readings take?
19. 19.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
20. 20.Which of these is an IoT device? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) a battery torch (d) a paper calendar
21. 21.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 120 readings take?
22. 22.🔍 Which is the odd one out? (a) a plain table fan (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a paper calendar
23. 23.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
24. 24.What does the microcontroller do? (a) shows data to you (b) acts on a command (c) carries the data (d) reads values, decides
25. 25.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
26. 26.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) the board reads it (b) it is sent by Wi-Fi
27. 27.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
28. 28.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
29. 29.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
30. 30.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🔢 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
32. 32.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
33. 33.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the app shows it (c) the board reads it (d) the cloud stores it
34. 34.🌐 In an IoT system, which part shows data to you? (a) phone app (b) sensor (c) microcontroller (d) Wi-Fi
35. 35.🌐 What does IoT stand for? (a) Internet of Things (b) Input of Tools (c) Inside of Toys (d) Internet of Talk
36. 36.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the app shows it (c) it is sent by Wi-Fi (d) the cloud stores it
37. 37.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a plain wall switch
38. 38.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 40 readings take?
39. 39.🔍 Which is the odd one out? (a) a battery torch (b) a plain table fan (c) a plain wall switch (d) a Wi-Fi weather station
40. 40.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?

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