Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 532 · 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 plain table fan an IoT device? (a) not an IoT device (b) an IoT device
2. 2.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a smart energy meter (d) a pencil sharpener
3. 3.🏠 Which is a smart-home example? (a) a hand fan (b) lights on from an app (c) a candle in a jar (d) a printed map
4. 4.🔍 Which is the odd one out? (a) a smart energy meter (b) a wind-up clock (c) an app-controlled bulb (d) a Wi-Fi weather station
5. 5.🔍 Which is the odd one out? (a) a smart energy meter (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a paper calendar
6. 6.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a battery torch (c) a paper calendar (d) a wind-up clock
7. 7.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Internet of Things (d) Inside of Toys
8. 8.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a smart energy meter (c) a pencil sharpener (d) a fitness band with app
9. 9.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
10. 10.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
11. 11.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
12. 12.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain wall switch (c) an app-controlled bulb (d) a fitness band with app
13. 13.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the cloud stores it (c) the board reads it (d) the sensor measures
14. 14.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
15. 15.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🔍 Which is the odd one out? (a) a battery torch (b) a paper calendar (c) a wind-up clock (d) an app-controlled bulb
17. 17.What does the Wi-Fi link do? (a) stores data online (b) acts on a command (c) carries the data (d) reads values, decides
18. 18.Which of these is not an IoT device? (a) a paper calendar (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) an app-controlled bulb
19. 19.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain wall switch (c) a wind-up clock (d) a paper calendar
20. 20.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
21. 21.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
22. 22.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
23. 23.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) a battery torch (d) a Wi-Fi doorbell camera
24. 24.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) Wi-Fi (c) sensor (d) phone app
25. 25.🌐 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
26. 26.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
27. 27.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) the app shows it (b) it is sent by Wi-Fi
28. 28.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?
29. 29.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 160 readings take?
30. 30.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 100 readings take?
31. 31.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a battery torch
32. 32.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the sensor measures (c) the app shows it (d) it is sent by Wi-Fi
34. 34.🌐 In an IoT system, which part shows data to you? (a) sensor (b) actuator (c) phone app (d) microcontroller
35. 35.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) microcontroller (c) actuator (d) cloud server
36. 36.🌐 In an IoT system, which part acts on a command? (a) actuator (b) Wi-Fi (c) sensor (d) phone app
37. 37.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
38. 38.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a fitness band with app (c) a smart energy meter (d) a plain table fan
39. 39.What does the cloud server do? (a) measures the real world (b) carries the data (c) reads values, decides (d) stores data online
40. 40.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 200 readings take?

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