Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 52 · 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.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
2. 2.🌐 What does IoT stand for? (a) Internet of Things (b) Input of Tools (c) Inside of Toys (d) Internet of Talk
3. 3.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
4. 4.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) a printed map (d) lights on from an app
5. 5.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a wind-up clock (d) a Wi-Fi doorbell camera
6. 6.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 140 readings take?
7. 7.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
8. 8.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
9. 9.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) cloud server (c) actuator (d) phone app
10. 10.What does the microcontroller do? (a) measures the real world (b) stores data online (c) carries the data (d) reads values, decides
11. 11.What does the phone app do? (a) carries the data (b) shows data to you (c) measures the real world (d) reads values, decides
12. 12.Which of these is not an IoT device? (a) a smart energy meter (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a pencil sharpener
13. 13.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
14. 14.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🔍 Which is the odd one out? (a) a paper calendar (b) an app-controlled bulb (c) a pencil sharpener (d) a plain table fan
16. 16.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) the sensor measures (c) the app shows it (d) it is sent by Wi-Fi
18. 18.What does the actuator do? (a) carries the data (b) acts on a command (c) reads values, decides (d) measures the real world
19. 19.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
20. 20.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) cloud server (c) phone app (d) actuator
21. 21.🔍 Which is the odd one out? (a) a wind-up clock (b) a pencil sharpener (c) a paper calendar (d) a Wi-Fi doorbell camera
22. 22.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
23. 23.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi weather station (c) a paper calendar (d) a pencil sharpener
24. 24.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by post (d) by shouting
25. 25.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a battery torch (d) a Wi-Fi weather station
26. 26.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 200 readings take?
27. 27.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the sensor measures (c) it is sent by Wi-Fi (d) the board reads it
28. 28.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the board reads it (b) the cloud stores it
29. 29.🌐 In an IoT system, which part stores data online? (a) sensor (b) cloud server (c) Wi-Fi (d) phone app
30. 30.🌐 In an IoT system, which part measures the real world? (a) sensor (b) microcontroller (c) cloud server (d) phone app
31. 31.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
32. 32.What does the Wi-Fi link do? (a) acts on a command (b) stores data online (c) carries the data (d) measures the real world
33. 33.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
34. 34.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a plain table fan (d) a pencil sharpener
35. 35.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 150 readings take?
36. 36.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) the cloud stores it (b) it is sent by Wi-Fi
37. 37.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
38. 38.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the cloud stores it (b) the sensor measures
39. 39.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) the sensor measures (c) the cloud stores it (d) it is sent by Wi-Fi
40. 40.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the board reads it (b) the app shows it

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