Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 713 · 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 a smart-home example? (a) lights on from an app (b) a printed map (c) a candle in a jar (d) a hand fan
2. 2.🔍 Which is the odd one out? (a) a paper calendar (b) a battery torch (c) a Wi-Fi smart plug (d) a plain wall switch
3. 3.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the board reads it (b) the app shows it
4. 4.🔍 Which is the odd one out? (a) a fitness band with app (b) a smart energy meter (c) a Wi-Fi smart plug (d) a plain wall switch
5. 5.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 200 readings take?
6. 6.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
8. 8.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) actuator (c) sensor (d) cloud server
9. 9.Which of these is an IoT device? (a) a plain table fan (b) a paper calendar (c) a Wi-Fi doorbell camera (d) a plain wall switch
10. 10.Which of these is an IoT device? (a) a plain table fan (b) a wind-up clock (c) a paper calendar (d) an app-controlled bulb
11. 11.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 20 readings take?
12. 12.What does the cloud server do? (a) shows data to you (b) carries the data (c) acts on a command (d) stores data online
13. 13.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 60 readings take?
14. 14.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
15. 15.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
16. 16.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a pencil sharpener
17. 17.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a battery torch (d) a smart energy meter
18. 18.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Internet of Things (d) Input of Tools
19. 19.🔢 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
20. 20.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
21. 21.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) the app shows it (c) the sensor measures (d) it is sent by Wi-Fi
22. 22.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
23. 23.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
24. 24.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
26. 26.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
27. 27.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
28. 28.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) it is sent by Wi-Fi (b) the board reads it
29. 29.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 100 readings take?
30. 30.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
31. 31.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the sensor measures (c) the board reads it (d) the cloud stores it
32. 32.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 7 minutes?
33. 33.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the cloud stores it (b) the board reads it
34. 34.🔍 Which is the odd one out? (a) a wind-up clock (b) a battery torch (c) a Wi-Fi weather station (d) a plain wall switch
35. 35.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 160 readings take?
36. 36.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) microcontroller (c) sensor (d) cloud server
37. 37.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi smart plug (c) a battery torch (d) a paper calendar
38. 38.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
39. 39.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the app shows it (c) the cloud stores it (d) the board reads it
40. 40.Which of these is an IoT device? (a) a pencil sharpener (b) a wind-up clock (c) a plain table fan (d) a fitness band with app

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