Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 137 · 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.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the app shows it (d) the sensor measures
2. 2.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a candle in a jar (d) a hand fan
3. 3.🌐 In an IoT system, which part shows data to you? (a) phone app (b) actuator (c) microcontroller (d) Wi-Fi
4. 4.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 60 readings take?
5. 5.Which of these is an IoT device? (a) a plain wall switch (b) a smart energy meter (c) a battery torch (d) a wind-up clock
6. 6.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
7. 7.What does the cloud server do? (a) shows data to you (b) measures the real world (c) acts on a command (d) stores data online
8. 8.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the cloud stores it (b) the board reads it
9. 9.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
10. 10.🔍 Which is the odd one out? (a) a plain table fan (b) a fitness band with app (c) a Wi-Fi smart plug (d) a smart energy meter
11. 11.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) the board reads it (c) it is sent by Wi-Fi (d) the sensor measures
13. 13.Which of these is an IoT device? (a) a plain table fan (b) a pencil sharpener (c) a paper calendar (d) an app-controlled bulb
14. 14.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the sensor measures (c) the app shows it (d) it is sent by Wi-Fi
15. 15.🔢 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
16. 16.What does the Wi-Fi link do? (a) acts on a command (b) carries the data (c) reads values, decides (d) stores data online
17. 17.🌐 In an IoT system, which part measures the real world? (a) actuator (b) Wi-Fi (c) sensor (d) phone app
18. 18.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) sensor (c) actuator (d) phone app
19. 19.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Talk (d) Internet of Things
20. 20.What does the microcontroller do? (a) shows data to you (b) stores data online (c) carries the data (d) reads values, decides
21. 21.What does the sensor do? (a) carries the data (b) reads values, decides (c) measures the real world (d) stores data online
22. 22.Which of these is an IoT device? (a) a battery torch (b) a plain table fan (c) a fitness band with app (d) a plain wall switch
23. 23.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
24. 24.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 170 readings take?
25. 25.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
26. 26.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
27. 27.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
28. 28.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
29. 29.🔍 Which is the odd one out? (a) a paper calendar (b) a plain table fan (c) a fitness band with app (d) a battery torch
30. 30.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
32. 32.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 40 readings take?
33. 33.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
34. 34.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
35. 35.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a Wi-Fi weather station (d) a battery torch
36. 36.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a pencil sharpener
37. 37.🌐 In an IoT system, which part stores data online? (a) sensor (b) Wi-Fi (c) microcontroller (d) cloud server
38. 38.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by shouting (d) by post
39. 39.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device

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