Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 406 · 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.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) actuator (c) phone app (d) cloud server
2. 2.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a fitness band with app
3. 3.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the app shows it
4. 4.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Internet of Talk (d) Inside of Toys
5. 5.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) lights on from an app (d) a candle in a jar
6. 6.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🔢 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
8. 8.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) a pencil sharpener (d) a Wi-Fi weather station
9. 9.🌐 In an IoT system, which part stores data online? (a) cloud server (b) actuator (c) phone app (d) Wi-Fi
10. 10.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain wall switch (c) a paper calendar (d) a battery torch
11. 11.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) by shouting (d) over Wi-Fi
12. 12.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) an app-controlled bulb (d) a paper calendar
13. 13.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
14. 14.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 140 readings take?
16. 16.What does the microcontroller do? (a) reads values, decides (b) stores data online (c) acts on a command (d) measures the real world
17. 17.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 30 readings take?
18. 18.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 90 readings take?
19. 19.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 40 readings take?
20. 20.🔢 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
21. 21.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
22. 22.What does the cloud server do? (a) reads values, decides (b) carries the data (c) shows data to you (d) stores data online
23. 23.🔍 Which is the odd one out? (a) a fitness band with app (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a wind-up clock
24. 24.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
25. 25.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) Wi-Fi (c) sensor (d) actuator
26. 26.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
27. 27.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
28. 28.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
29. 29.Which of these is an IoT device? (a) a plain wall switch (b) a plain table fan (c) a smart energy meter (d) a battery torch
30. 30.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
31. 31.Which of these is an IoT device? (a) a plain table fan (b) a wind-up clock (c) a Wi-Fi smart plug (d) a battery torch
32. 32.What does the sensor do? (a) reads values, decides (b) measures the real world (c) carries the data (d) stores data online
33. 33.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 80 readings take?
34. 34.What does the actuator do? (a) measures the real world (b) carries the data (c) reads values, decides (d) acts on a command
35. 35.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
36. 36.What does the Wi-Fi link do? (a) measures the real world (b) carries the data (c) acts on a command (d) reads values, decides
37. 37.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the app shows it (c) the cloud stores it (d) the board reads it
38. 38.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
39. 39.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) a Wi-Fi weather station (d) a plain wall switch
40. 40.🔢 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

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