Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 876 · 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.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by post (d) by shouting
2. 2.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a Wi-Fi weather station (d) a paper calendar
3. 3.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) Wi-Fi (c) phone app (d) sensor
4. 4.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
5. 5.🔍 Which is the odd one out? (a) a plain table fan (b) a plain wall switch (c) an app-controlled bulb (d) a wind-up clock
6. 6.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
8. 8.What does the sensor do? (a) reads values, decides (b) measures the real world (c) stores data online (d) carries the data
9. 9.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
10. 10.What does the phone app do? (a) stores data online (b) measures the real world (c) carries the data (d) shows data to you
11. 11.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the app shows it
12. 12.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) the sensor measures (b) it is sent by Wi-Fi
13. 13.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Input of Tools (d) Inside of Toys
14. 14.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a plain wall switch (d) a fitness band with app
17. 17.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
18. 18.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a wind-up clock (c) a smart energy meter (d) a Wi-Fi weather station
19. 19.🔍 Which is the odd one out? (a) a wind-up clock (b) a battery torch (c) a Wi-Fi smart plug (d) a plain table fan
20. 20.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
21. 21.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
22. 22.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
23. 23.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
24. 24.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
25. 25.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
26. 26.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a hand fan (d) a printed map
27. 27.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) it is sent by Wi-Fi (b) the app shows it (c) the cloud stores it (d) the sensor measures
28. 28.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 50 readings take?
29. 29.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
30. 30.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
31. 31.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the app shows it (d) the sensor measures
32. 32.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 20 readings take?
33. 33.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain wall switch (c) a plain table fan (d) a wind-up clock
34. 34.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) phone app (c) Wi-Fi (d) cloud server
35. 35.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) actuator (c) sensor (d) phone app
36. 36.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
37. 37.🔢 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
38. 38.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) an app-controlled bulb (d) a plain wall switch
39. 39.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 40 readings take?
40. 40.🔢 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

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