Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 933 · 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, what comes right after “the sensor measures”? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) it is sent by Wi-Fi
2. 2.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
3. 3.🔢 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
4. 4.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the board reads it (c) the app shows it (d) the cloud stores it
5. 5.What does the Wi-Fi link do? (a) shows data to you (b) acts on a command (c) measures the real world (d) carries the data
6. 6.🌐 In an IoT system, which part carries the data? (a) sensor (b) actuator (c) Wi-Fi (d) microcontroller
7. 7.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
8. 8.🔍 Which is the odd one out? (a) a plain wall switch (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a fitness band with app
9. 9.Which of these is an IoT device? (a) a paper calendar (b) a smart energy meter (c) a plain table fan (d) a plain wall switch
10. 10.🔢 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
11. 11.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) an app-controlled bulb (d) a Wi-Fi weather station
12. 12.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a pencil sharpener (d) a Wi-Fi weather station
13. 13.What does the cloud server do? (a) carries the data (b) acts on a command (c) stores data online (d) measures the real world
14. 14.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a paper calendar (c) a Wi-Fi doorbell camera (d) a fitness band with app
16. 16.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 170 readings take?
17. 17.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 110 readings take?
18. 18.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) sensor (c) actuator (d) Wi-Fi
19. 19.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a wind-up clock (d) a smart energy meter
20. 20.🌐 In an IoT system, which part measures the real world? (a) phone app (b) Wi-Fi (c) cloud server (d) sensor
21. 21.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
22. 22.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the sensor measures (c) the cloud stores it (d) the board reads it
23. 23.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) an app-controlled bulb (d) a plain table fan
24. 24.🌐 In an IoT system, which part shows data to you? (a) sensor (b) Wi-Fi (c) phone app (d) actuator
25. 25.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) the board reads it (b) it is sent by Wi-Fi
26. 26.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the board reads it (b) the app shows it
27. 27.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a battery torch
28. 28.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
29. 29.Which of these is not an IoT device? (a) a wind-up clock (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a smart energy meter
30. 30.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
31. 31.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
32. 32.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) microcontroller (c) cloud server (d) sensor
34. 34.🏠 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
35. 35.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
36. 36.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the sensor measures (b) the cloud stores it
37. 37.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
38. 38.What does the sensor do? (a) carries the data (b) shows data to you (c) measures the real world (d) stores data online
39. 39.🔢 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
40. 40.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a battery torch (d) a wind-up clock

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