Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 975 · 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 smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
2. 2.What does the cloud server do? (a) carries the data (b) acts on a command (c) stores data online (d) reads values, decides
3. 3.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 80 readings take?
4. 4.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 190 readings take?
5. 5.🌐 In an IoT system, which part shows data to you? (a) actuator (b) Wi-Fi (c) phone app (d) cloud server
6. 6.🔍 Which is the odd one out? (a) a wind-up clock (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a plain wall switch
7. 7.What does the microcontroller do? (a) reads values, decides (b) acts on a command (c) carries the data (d) measures the real world
8. 8.🔍 Which is the odd one out? (a) a pencil sharpener (b) a wind-up clock (c) a Wi-Fi weather station (d) a paper calendar
9. 9.Which of these is an IoT device? (a) a wind-up clock (b) a Wi-Fi weather station (c) a plain wall switch (d) a paper calendar
10. 10.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) sensor (c) cloud server (d) actuator
11. 11.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the sensor measures
12. 12.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
13. 13.🏠 Which is a smart-home example? (a) a hand fan (b) a printed map (c) a candle in a jar (d) lights on from an app
14. 14.Which of these is not an IoT device? (a) an app-controlled bulb (b) a plain wall switch (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
15. 15.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
16. 16.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
17. 17.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 140 readings take?
18. 18.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
19. 19.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) it is sent by Wi-Fi (b) the cloud stores it
20. 20.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
21. 21.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a battery torch (c) a smart energy meter (d) a Wi-Fi doorbell camera
22. 22.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
23. 23.What does the Wi-Fi link do? (a) reads values, decides (b) acts on a command (c) carries the data (d) measures the real world
24. 24.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?
25. 25.Which of these is not an IoT device? (a) an app-controlled bulb (b) a fitness band with app (c) a battery torch (d) a Wi-Fi smart plug
26. 26.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
27. 27.Which of these is not an IoT device? (a) an app-controlled bulb (b) a wind-up clock (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
28. 28.What does the sensor do? (a) reads values, decides (b) carries the data (c) shows data to you (d) measures the real world
29. 29.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
30. 30.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the cloud stores it”? (a) the cloud stores it (b) the app shows it
31. 31.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 160 readings take?
33. 33.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
34. 34.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 80 readings take?
35. 35.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) by shouting (d) over Wi-Fi
36. 36.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
37. 37.🔍 Which is the odd one out? (a) a plain wall switch (b) an app-controlled bulb (c) a wind-up clock (d) a paper calendar
38. 38.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
39. 39.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
40. 40.🔍 Which is the odd one out? (a) a paper calendar (b) a pencil sharpener (c) a plain table fan (d) a smart energy meter

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