Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 792 · 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 of these is not an IoT device? (a) a pencil sharpener (b) an app-controlled bulb (c) a fitness band with app (d) a Wi-Fi weather station
2. 2.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
3. 3.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
4. 4.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 140 readings take?
5. 5.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
6. 6.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) sensor (c) actuator (d) phone app
7. 7.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) cloud server (c) actuator (d) sensor
8. 8.What does the microcontroller do? (a) shows data to you (b) stores data online (c) carries the data (d) reads values, decides
9. 9.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) the board reads it (c) the app shows it (d) it is sent by Wi-Fi
10. 10.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
11. 11.🔍 Which is the odd one out? (a) a fitness band with app (b) a paper calendar (c) a wind-up clock (d) a pencil sharpener
12. 12.What does the phone app do? (a) carries the data (b) acts on a command (c) measures the real world (d) shows data to you
13. 13.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) microcontroller (c) phone app (d) cloud server
14. 14.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
15. 15.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 200 readings take?
16. 16.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a battery torch (c) an app-controlled bulb (d) a smart energy meter
17. 17.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the cloud stores it
18. 18.🔢 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 sensor measures (d) it is sent by Wi-Fi
19. 19.What does the cloud server do? (a) stores data online (b) reads values, decides (c) shows data to you (d) acts on a command
20. 20.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
21. 21.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
22. 22.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
23. 23.What does the Wi-Fi link do? (a) acts on a command (b) stores data online (c) carries the data (d) measures the real world
24. 24.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a smart energy meter (c) a paper calendar (d) an app-controlled bulb
25. 25.Which of these is an IoT device? (a) a plain table fan (b) a plain wall switch (c) a paper calendar (d) an app-controlled bulb
26. 26.🔍 Which is the odd one out? (a) a fitness band with app (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
27. 27.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) sensor (c) actuator (d) phone app
28. 28.🔍 Which is the odd one out? (a) a pencil sharpener (b) a wind-up clock (c) a paper calendar (d) an app-controlled bulb
29. 29.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
30. 30.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the sensor measures (c) it is sent by Wi-Fi (d) the app shows it
31. 31.Which of these is an IoT device? (a) a plain table fan (b) a smart energy meter (c) a paper calendar (d) a plain wall switch
32. 32.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the board reads it (d) the app shows it
33. 33.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
34. 34.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
35. 35.What does the actuator do? (a) shows data to you (b) carries the data (c) acts on a command (d) reads values, decides
36. 36.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
37. 37.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a plain table fan
38. 38.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the board reads it (c) the cloud stores it (d) the app shows it
39. 39.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
40. 40.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?

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