Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 527 · 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.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
2. 2.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
3. 3.Which of these is not an IoT device? (a) a smart energy meter (b) a pencil sharpener (c) a fitness band with app (d) an app-controlled bulb
4. 4.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 160 readings take?
5. 5.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) sensor (c) Wi-Fi (d) actuator
6. 6.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
7. 7.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
8. 8.What does the microcontroller do? (a) stores data online (b) reads values, decides (c) acts on a command (d) measures the real world
9. 9.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) sensor (c) actuator (d) microcontroller
10. 10.What does the cloud server do? (a) stores data online (b) shows data to you (c) measures the real world (d) carries the data
11. 11.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
13. 13.Which of these is an IoT device? (a) a wind-up clock (b) a smart energy meter (c) a paper calendar (d) a plain wall switch
14. 14.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
15. 15.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a battery torch (d) a smart energy meter
16. 16.🔍 Which is the odd one out? (a) a plain wall switch (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
17. 17.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
18. 18.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) a fitness band with app (d) a plain table fan
19. 19.🌐 In an IoT system, which part acts on a command? (a) sensor (b) microcontroller (c) actuator (d) phone app
20. 20.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) the board reads it (b) it is sent by Wi-Fi
21. 21.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 180 readings take?
22. 22.What does the Wi-Fi link do? (a) measures the real world (b) stores data online (c) carries the data (d) shows data to you
23. 23.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) the sensor measures (c) the app shows it (d) it is sent by Wi-Fi
24. 24.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) the app shows it (b) it is sent by Wi-Fi
25. 25.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?
26. 26.Which of these is an IoT device? (a) a pencil sharpener (b) an app-controlled bulb (c) a paper calendar (d) a wind-up clock
27. 27.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
28. 28.🔍 Which is the odd one out? (a) a plain table fan (b) a fitness band with app (c) an app-controlled bulb (d) a Wi-Fi smart plug
29. 29.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a paper calendar (d) an app-controlled bulb
30. 30.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
31. 31.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
32. 32.🌐 In an IoT system, which part stores data online? (a) actuator (b) microcontroller (c) phone app (d) cloud server
33. 33.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) a printed map (d) lights on from an app
34. 34.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a Wi-Fi weather station
35. 35.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
36. 36.🔍 Which is the odd one out? (a) a paper calendar (b) a smart energy meter (c) a battery torch (d) a plain wall switch
37. 37.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) it is sent by Wi-Fi (b) the sensor measures (c) the cloud stores it (d) the app shows it
38. 38.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
39. 39.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a smart energy meter (d) a paper calendar
40. 40.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a plain table fan

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