Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 133 · 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.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
2. 2.What does the microcontroller do? (a) carries the data (b) stores data online (c) acts on a command (d) reads values, decides
3. 3.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 150 readings take?
4. 4.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) over Wi-Fi (d) by shouting
5. 5.🔍 Which is the odd one out? (a) a paper calendar (b) a fitness band with app (c) a Wi-Fi weather station (d) a smart energy meter
6. 6.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) it is sent by Wi-Fi (c) the sensor measures (d) the app shows it
7. 7.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) it is sent by Wi-Fi
8. 8.🏠 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
9. 9.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
10. 10.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Things (d) Internet of Talk
11. 11.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 30 readings take?
12. 12.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 8 minutes?
13. 13.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi smart plug (c) a paper calendar (d) a plain table fan
14. 14.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi smart plug (c) a wind-up clock (d) a paper calendar
15. 15.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
16. 16.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
17. 17.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
18. 18.🔢 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 board reads it (d) the sensor measures
19. 19.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the cloud stores it”? (a) the app shows it (b) the cloud stores it
20. 20.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
21. 21.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a paper calendar (c) a Wi-Fi smart plug (d) an app-controlled bulb
22. 22.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 30 readings take?
23. 23.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 40 readings take?
24. 24.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 110 readings take?
26. 26.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a fitness band with app
27. 27.What does the cloud server do? (a) acts on a command (b) stores data online (c) reads values, decides (d) shows data to you
28. 28.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a plain table fan (c) a paper calendar (d) a plain wall switch
29. 29.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) microcontroller (c) sensor (d) Wi-Fi
30. 30.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?
31. 31.What does the Wi-Fi link do? (a) shows data to you (b) reads values, decides (c) carries the data (d) stores data online
32. 32.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
33. 33.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the board reads it (c) it is sent by Wi-Fi (d) the app shows it
34. 34.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a paper calendar (d) a Wi-Fi weather station
35. 35.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a smart energy meter (d) a wind-up clock
36. 36.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 140 readings take?
37. 37.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
38. 38.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
39. 39.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 160 readings take?
40. 40.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) Wi-Fi (c) phone app (d) cloud server

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