Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 492 · 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.🌐 In an IoT system, which part measures the real world? (a) actuator (b) microcontroller (c) Wi-Fi (d) sensor
2. 2.Which of these is an IoT device? (a) a smart energy meter (b) a wind-up clock (c) a battery torch (d) a paper calendar
3. 3.🌐 In an IoT system, which part carries the data? (a) phone app (b) microcontroller (c) Wi-Fi (d) cloud server
4. 4.Which of these is not an IoT device? (a) a plain table fan (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a smart energy meter
5. 5.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the board reads it (c) the app shows it (d) the sensor measures
6. 6.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?
7. 7.🌐 In an IoT system, which part acts on a command? (a) actuator (b) sensor (c) microcontroller (d) cloud server
8. 8.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
9. 9.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
10. 10.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) Wi-Fi (c) actuator (d) sensor
11. 11.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) it is sent by Wi-Fi (b) the sensor measures
12. 12.Which of these is an IoT device? (a) a paper calendar (b) a pencil sharpener (c) an app-controlled bulb (d) a battery torch
13. 13.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 90 readings take?
14. 14.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
17. 17.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a plain wall switch (c) a paper calendar (d) a battery torch
18. 18.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a fitness band with app (d) a plain wall switch
19. 19.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 5 minutes?
20. 20.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
21. 21.🌐 In an IoT system, which part shows data to you? (a) sensor (b) microcontroller (c) phone app (d) cloud server
22. 22.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the sensor measures (b) the app shows it
23. 23.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
24. 24.What does the Wi-Fi link do? (a) carries the data (b) acts on a command (c) measures the real world (d) shows data to you
25. 25.What does the cloud server do? (a) reads values, decides (b) shows data to you (c) carries the data (d) stores data online
26. 26.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) a plain table fan (d) a Wi-Fi smart plug
27. 27.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a printed map (d) a hand fan
28. 28.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a battery torch (d) a paper calendar
29. 29.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
30. 30.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
31. 31.What does the actuator do? (a) reads values, decides (b) acts on a command (c) measures the real world (d) stores data online
32. 32.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a smart energy meter (d) a battery torch
33. 33.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
34. 34.🔢 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) the board reads it
35. 35.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
36. 36.Which of these is not an IoT device? (a) a smart energy meter (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a wind-up clock
37. 37.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a pencil sharpener
38. 38.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the board reads it (c) the sensor measures (d) it is sent by Wi-Fi
39. 39.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Input of Tools (d) Internet of Things
40. 40.🔍 Which is the odd one out? (a) a wind-up clock (b) a fitness band with app (c) a smart energy meter (d) a Wi-Fi smart plug

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