Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 187 · 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.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a plain wall switch (d) a Wi-Fi doorbell camera
2. 2.🌐 In an IoT system, which part measures the real world? (a) actuator (b) sensor (c) phone app (d) Wi-Fi
3. 3.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
4. 4.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 160 readings take?
5. 5.🌐 In an IoT system, which part carries the data? (a) actuator (b) cloud server (c) phone app (d) Wi-Fi
6. 6.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a fitness band with app (c) a plain table fan (d) a Wi-Fi smart plug
7. 7.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
8. 8.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a hand fan (d) a candle in a jar
9. 9.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
10. 10.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 30 readings take?
12. 12.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
13. 13.What does the actuator do? (a) stores data online (b) carries the data (c) acts on a command (d) measures the real world
14. 14.Which of these is not an IoT device? (a) a plain wall switch (b) a smart energy meter (c) a fitness band with app (d) a Wi-Fi weather station
15. 15.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 60 readings take?
16. 16.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
17. 17.Which of these is an IoT device? (a) a plain table fan (b) a smart energy meter (c) a paper calendar (d) a battery torch
18. 18.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) a wind-up clock (d) an app-controlled bulb
19. 19.🔢 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
20. 20.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
21. 21.What does the phone app do? (a) reads values, decides (b) acts on a command (c) stores data online (d) shows data to you
22. 22.Which of these is not an IoT device? (a) a plain table fan (b) a smart energy meter (c) a Wi-Fi weather station (d) an app-controlled bulb
23. 23.What does the microcontroller do? (a) reads values, decides (b) measures the real world (c) carries the data (d) stores data online
24. 24.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) a smart energy meter (d) a wind-up clock
25. 25.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the board reads it (d) the sensor measures
26. 26.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) cloud server (c) actuator (d) phone app
27. 27.Which of these is an IoT device? (a) a paper calendar (b) a Wi-Fi weather station (c) a wind-up clock (d) a battery torch
28. 28.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) the sensor measures (b) it is sent by Wi-Fi
29. 29.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a smart energy meter (d) a wind-up clock
30. 30.🌐 Is a fitness band with app 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 2 minutes?
32. 32.What does the sensor do? (a) measures the real world (b) carries the data (c) reads values, decides (d) stores data online
33. 33.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
34. 34.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the board reads it
36. 36.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a smart energy meter (d) a Wi-Fi doorbell camera
37. 37.Which of these is an IoT device? (a) a pencil sharpener (b) a plain wall switch (c) a battery torch (d) a Wi-Fi smart plug
38. 38.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) actuator (c) phone app (d) cloud server
39. 39.🔢 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) the sensor measures (d) it is sent by Wi-Fi
40. 40.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 70 readings take?

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