Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 908 · 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.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the board reads it (c) it is sent by Wi-Fi (d) the app shows it
2. 2.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
3. 3.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 150 readings take?
4. 4.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) an app-controlled bulb (d) a plain table fan
5. 5.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
6. 6.🔍 Which is the odd one out? (a) a battery torch (b) a fitness band with app (c) a plain wall switch (d) a paper calendar
7. 7.🔢 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
8. 8.🌐 In an IoT system, which part stores data online? (a) phone app (b) microcontroller (c) Wi-Fi (d) cloud server
9. 9.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) it is sent by Wi-Fi (b) the cloud stores it
10. 10.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 80 readings take?
11. 11.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🌐 In an IoT system, which part acts on a command? (a) actuator (b) phone app (c) microcontroller (d) Wi-Fi
14. 14.Which of these is an IoT device? (a) a pencil sharpener (b) a paper calendar (c) a Wi-Fi smart plug (d) a wind-up clock
15. 15.What does the sensor do? (a) carries the data (b) acts on a command (c) measures the real world (d) reads values, decides
16. 16.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
17. 17.What does the Wi-Fi link do? (a) stores data online (b) carries the data (c) measures the real world (d) shows data to you
18. 18.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
19. 19.🌐 In an IoT system, which part carries the data? (a) actuator (b) phone app (c) microcontroller (d) Wi-Fi
20. 20.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
21. 21.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a fitness band with app (c) a plain table fan (d) a Wi-Fi smart plug
22. 22.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 20 readings take?
23. 23.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) it is sent by Wi-Fi (b) the sensor measures
24. 24.What does the cloud server do? (a) reads values, decides (b) measures the real world (c) stores data online (d) shows data to you
25. 25.🌐 In an IoT system, which part shows data to you? (a) actuator (b) cloud server (c) phone app (d) sensor
26. 26.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the cloud stores it (b) the board reads it
27. 27.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
28. 28.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
29. 29.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
30. 30.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
31. 31.Which of these is not an IoT device? (a) a wind-up clock (b) a smart energy meter (c) a Wi-Fi weather station (d) an app-controlled bulb
32. 32.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
33. 33.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
34. 34.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🔍 Which is the odd one out? (a) a plain table fan (b) a battery torch (c) a plain wall switch (d) a smart energy meter
36. 36.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) a printed map (d) lights on from an app
37. 37.What does the actuator do? (a) carries the data (b) acts on a command (c) measures the real world (d) stores data online
38. 38.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a pencil sharpener (c) a fitness band with app (d) a Wi-Fi smart plug
39. 39.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Input of Tools (d) Inside of Toys
40. 40.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 180 readings take?

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