Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 391 · 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) a smart energy meter (b) a battery torch (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
2. 2.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 30 readings take?
3. 3.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
4. 4.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
5. 5.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) over Wi-Fi (c) by shouting (d) through a candle
6. 6.Which of these is an IoT device? (a) a wind-up clock (b) a Wi-Fi weather station (c) a plain table fan (d) a paper calendar
7. 7.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
9. 9.What does the sensor do? (a) stores data online (b) reads values, decides (c) measures the real world (d) carries the data
10. 10.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the app shows it (c) the board reads it (d) the cloud stores it
11. 11.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
12. 12.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
13. 13.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a pencil sharpener (d) an app-controlled bulb
14. 14.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a smart energy meter (c) an app-controlled bulb (d) a paper calendar
15. 15.🔍 Which is the odd one out? (a) a battery torch (b) an app-controlled bulb (c) a plain table fan (d) a plain wall switch
16. 16.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) it is sent by Wi-Fi (b) the sensor measures
17. 17.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) phone app (c) sensor (d) cloud server
18. 18.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a paper calendar (d) a battery torch
19. 19.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a hand fan (d) a candle in a jar
20. 20.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi weather station (c) a wind-up clock (d) a pencil sharpener
21. 21.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) the board reads it (c) the app shows it (d) it is sent by Wi-Fi
22. 22.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
23. 23.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) the cloud stores it (b) it is sent by Wi-Fi
24. 24.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
26. 26.🔍 Which is the odd one out? (a) a fitness band with app (b) an app-controlled bulb (c) a pencil sharpener (d) a Wi-Fi smart plug
27. 27.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
28. 28.🔍 Which is the odd one out? (a) a plain wall switch (b) a smart energy meter (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
29. 29.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the app shows it (d) the board reads it
30. 30.What does the cloud server do? (a) shows data to you (b) acts on a command (c) stores data online (d) carries the data
31. 31.🔢 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
32. 32.Which of these is an IoT device? (a) an app-controlled bulb (b) a paper calendar (c) a wind-up clock (d) a battery torch
33. 33.🔍 Which is the odd one out? (a) a battery torch (b) a pencil sharpener (c) a wind-up clock (d) a smart energy meter
34. 34.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a fitness band with app (c) a plain table fan (d) a smart energy meter
35. 35.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
36. 36.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
37. 37.Which of these is not an IoT device? (a) a smart energy meter (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
38. 38.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) it is sent by Wi-Fi (b) the app shows it
39. 39.🌐 In an IoT system, which part shows data to you? (a) sensor (b) microcontroller (c) phone app (d) Wi-Fi
40. 40.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 9 minutes?

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