Electronics Worksheet: What Is IoT

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

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