Electronics Worksheet: What Is IoT

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

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