Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 519 · 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 Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
2. 2.🌐 In an IoT system, which part stores data online? (a) cloud server (b) actuator (c) Wi-Fi (d) sensor
3. 3.What does the sensor do? (a) acts on a command (b) stores data online (c) measures the real world (d) carries the data
4. 4.Which of these is an IoT device? (a) a plain wall switch (b) an app-controlled bulb (c) a plain table fan (d) a paper calendar
5. 5.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
6. 6.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 80 readings take?
7. 7.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the app shows it (b) the sensor measures
8. 8.🔍 Which is the odd one out? (a) a paper calendar (b) an app-controlled bulb (c) a battery torch (d) a plain table fan
9. 9.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 130 readings take?
10. 10.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Talk (d) Internet of Things
11. 11.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) it is sent by Wi-Fi (c) the app shows it (d) the cloud stores it
12. 12.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the board reads it (b) the sensor measures
13. 13.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a plain wall switch
14. 14.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) actuator (c) phone app (d) microcontroller
15. 15.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
16. 16.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 180 readings take?
17. 17.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
18. 18.🔍 Which is the odd one out? (a) a smart energy meter (b) a paper calendar (c) a fitness band with app (d) a Wi-Fi smart plug
19. 19.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the sensor measures (c) the cloud stores it (d) it is sent by Wi-Fi
20. 20.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) through a candle (c) over Wi-Fi (d) by post
21. 21.🔍 Which is the odd one out? (a) a pencil sharpener (b) a paper calendar (c) a fitness band with app (d) a plain wall switch
22. 22.🔍 Which is the odd one out? (a) a smart energy meter (b) a wind-up clock (c) a fitness band with app (d) an app-controlled bulb
23. 23.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
24. 24.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the app shows it
25. 25.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a pencil sharpener (c) a plain wall switch (d) a plain table fan
26. 26.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) phone app (c) microcontroller (d) sensor
27. 27.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 170 readings take?
28. 28.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a plain table fan
29. 29.🏠 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
30. 30.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a paper calendar
31. 31.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
32. 32.What does the Wi-Fi link do? (a) measures the real world (b) stores data online (c) carries the data (d) shows data to you
33. 33.🌐 In an IoT system, which part measures the real world? (a) phone app (b) Wi-Fi (c) cloud server (d) sensor
34. 34.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
35. 35.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a battery torch
36. 36.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
37. 37.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
38. 38.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the cloud stores it (b) the app shows it
39. 39.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?
40. 40.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device

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