Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 110 · 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 is the odd one out? (a) an app-controlled bulb (b) a battery torch (c) a plain wall switch (d) a paper calendar
2. 2.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) a pencil sharpener (d) a Wi-Fi doorbell camera
3. 3.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain wall switch (c) a wind-up clock (d) a battery torch
4. 4.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
5. 5.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
6. 6.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) by post (d) over Wi-Fi
7. 7.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Internet of Talk (d) Input of Tools
9. 9.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) phone app (c) sensor (d) actuator
10. 10.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
12. 12.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a fitness band with app (d) a paper calendar
13. 13.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
15. 15.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain wall switch (c) a Wi-Fi smart plug (d) a wind-up clock
16. 16.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a plain wall switch (c) a Wi-Fi smart plug (d) an app-controlled bulb
17. 17.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) cloud server (c) microcontroller (d) sensor
18. 18.🔢 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
19. 19.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 130 readings take?
20. 20.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a smart energy meter (d) a battery torch
21. 21.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
22. 22.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
23. 23.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a pencil sharpener
24. 24.What does the Wi-Fi link do? (a) reads values, decides (b) acts on a command (c) measures the real world (d) carries the data
25. 25.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
26. 26.🏠 Which is a smart-home example? (a) a hand fan (b) lights on from an app (c) a printed map (d) a candle in a jar
27. 27.🔍 Which is the odd one out? (a) a battery torch (b) a smart energy meter (c) a plain table fan (d) a paper calendar
28. 28.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) it is sent by Wi-Fi (c) the sensor measures (d) the board reads it
29. 29.Which of these is an IoT device? (a) a battery torch (b) a plain table fan (c) a paper calendar (d) a Wi-Fi smart plug
30. 30.🔍 Which is the odd one out? (a) a battery torch (b) a plain wall switch (c) a Wi-Fi weather station (d) a paper calendar
31. 31.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) Wi-Fi (c) sensor (d) phone app
32. 32.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 100 readings take?
33. 33.Which of these is not an IoT device? (a) a plain table fan (b) a Wi-Fi weather station (c) a fitness band with app (d) a Wi-Fi smart plug
34. 34.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
35. 35.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
36. 36.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 10 minutes?
37. 37.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
38. 38.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a battery torch
39. 39.What does the actuator do? (a) reads values, decides (b) acts on a command (c) measures the real world (d) shows data to you
40. 40.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) sensor (c) Wi-Fi (d) microcontroller

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