Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 26 · 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.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 40 readings take?
2. 2.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) cloud server (c) phone app (d) sensor
3. 3.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) lights on from an app (d) a hand fan
4. 4.What does the microcontroller do? (a) acts on a command (b) shows data to you (c) stores data online (d) reads values, decides
5. 5.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?
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 sensor measures”? (a) the sensor measures (b) the board reads it
8. 8.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Input of Tools (d) Internet of Talk
9. 9.Which of these is an IoT device? (a) a paper calendar (b) a fitness band with app (c) a plain wall switch (d) a battery torch
10. 10.Which of these is not an IoT device? (a) a fitness band with app (b) a pencil sharpener (c) an app-controlled bulb (d) a Wi-Fi weather station
11. 11.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) a plain wall switch (d) a Wi-Fi doorbell camera
12. 12.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
13. 13.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
14. 14.What does the phone app do? (a) shows data to you (b) carries the data (c) stores data online (d) acts on a command
15. 15.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 200 readings take?
16. 16.🌐 In an IoT system, which part shows data to you? (a) phone app (b) Wi-Fi (c) cloud server (d) actuator
17. 17.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a fitness band with app (d) a battery torch
18. 18.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
19. 19.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a paper calendar (d) an app-controlled bulb
20. 20.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the board reads it (d) the sensor measures
21. 21.🌐 In an IoT system, which part stores data online? (a) sensor (b) microcontroller (c) Wi-Fi (d) cloud server
22. 22.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 190 readings take?
23. 23.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a plain table fan (d) an app-controlled bulb
24. 24.Which of these is not an IoT device? (a) an app-controlled bulb (b) a fitness band with app (c) a plain table fan (d) a Wi-Fi smart plug
25. 25.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the board reads it (c) the app shows it (d) the cloud stores it
26. 26.Which of these is an IoT device? (a) a smart energy meter (b) a battery torch (c) a plain wall switch (d) a plain table fan
27. 27.🌐 In an IoT system, which part carries the data? (a) sensor (b) actuator (c) Wi-Fi (d) microcontroller
28. 28.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
29. 29.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
30. 30.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a paper calendar (d) a plain table fan
31. 31.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) through a candle (d) over Wi-Fi
32. 32.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a plain wall switch
33. 33.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
34. 34.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
35. 35.Which of these is not an IoT device? (a) a smart energy meter (b) a fitness band with app (c) a Wi-Fi weather station (d) a wind-up clock
36. 36.Which of these is an IoT device? (a) a plain table fan (b) a pencil sharpener (c) a Wi-Fi weather station (d) a paper calendar
37. 37.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?
39. 39.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) sensor (c) actuator (d) cloud server
40. 40.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a plain wall switch (d) an app-controlled bulb

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