Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 455 · 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 15 seconds. How many readings does it send in 2 minutes?
2. 2.Which of these is an IoT device? (a) a plain wall switch (b) a wind-up clock (c) an app-controlled bulb (d) a plain table fan
3. 3.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a plain wall switch (d) a Wi-Fi doorbell camera
4. 4.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a paper calendar
5. 5.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 170 readings take?
6. 6.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the sensor measures (b) the board reads it
7. 7.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the board reads it (b) the sensor measures
8. 8.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a fitness band with app (c) a Wi-Fi smart plug (d) a battery torch
9. 9.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
10. 10.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) phone app (c) actuator (d) Wi-Fi
13. 13.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 160 readings take?
14. 14.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) cloud server (c) phone app (d) microcontroller
15. 15.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain wall switch (c) a Wi-Fi weather station (d) a smart energy meter
16. 16.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
17. 17.🔍 Which is the odd one out? (a) a battery torch (b) a pencil sharpener (c) a plain wall switch (d) a Wi-Fi smart plug
18. 18.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Things (d) Internet of Talk
19. 19.🌐 In an IoT system, which part stores data online? (a) actuator (b) microcontroller (c) Wi-Fi (d) cloud server
20. 20.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a plain wall switch (d) an app-controlled bulb
21. 21.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
22. 22.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a paper calendar (d) a plain wall switch
23. 23.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
24. 24.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the sensor measures
25. 25.🏠 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
26. 26.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
27. 27.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a battery torch (c) a fitness band with app (d) a Wi-Fi weather station
28. 28.What does the actuator do? (a) shows data to you (b) carries the data (c) acts on a command (d) stores data online
29. 29.What does the cloud server do? (a) reads values, decides (b) acts on a command (c) measures the real world (d) stores data online
30. 30.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the board reads it (d) the cloud stores it
31. 31.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
32. 32.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
33. 33.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a fitness band with app (d) a pencil sharpener
34. 34.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
35. 35.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) an app-controlled bulb
36. 36.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
37. 37.What does the Wi-Fi link do? (a) measures the real world (b) shows data to you (c) reads values, decides (d) carries the data
38. 38.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by shouting (c) by post (d) through a candle
39. 39.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the sensor measures

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