Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 757 · 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.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
2. 2.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) it is sent by Wi-Fi (c) the board reads it (d) the cloud stores it
3. 3.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the sensor measures (c) it is sent by Wi-Fi (d) the app shows it
4. 4.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 wind-up clock
5. 5.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
6. 6.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the cloud stores it (b) the sensor measures
7. 7.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
8. 8.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a pencil sharpener
9. 9.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Talk (d) Internet of Things
10. 10.What does the phone app do? (a) shows data to you (b) acts on a command (c) carries the data (d) reads values, decides
11. 11.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) a printed map (d) lights on from an app
14. 14.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
15. 15.🔢 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
16. 16.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a paper calendar (d) a Wi-Fi doorbell camera
17. 17.What does the sensor do? (a) measures the real world (b) stores data online (c) carries the data (d) reads values, decides
18. 18.What does the cloud server do? (a) acts on a command (b) measures the real world (c) stores data online (d) reads values, decides
19. 19.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi smart plug (c) a plain wall switch (d) a plain table fan
20. 20.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
21. 21.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?
22. 22.What does the Wi-Fi link do? (a) carries the data (b) shows data to you (c) acts on a command (d) reads values, decides
23. 23.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
24. 24.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) microcontroller (c) sensor (d) cloud server
25. 25.🔢 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) it is sent by Wi-Fi (d) the sensor measures
26. 26.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
27. 27.🌐 In an IoT system, which part acts on a command? (a) actuator (b) cloud server (c) phone app (d) microcontroller
28. 28.🔢 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 app shows it (c) the board reads it (d) the sensor measures
29. 29.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
30. 30.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the cloud stores it (b) the sensor measures
31. 31.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a battery torch (c) a wind-up clock (d) a paper calendar
33. 33.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) Wi-Fi (c) microcontroller (d) cloud server
34. 34.🌐 In an IoT system, which part stores data online? (a) sensor (b) phone app (c) actuator (d) cloud server
35. 35.Which of these is an IoT device? (a) a plain wall switch (b) a wind-up clock (c) a smart energy meter (d) a battery torch
36. 36.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) phone app (c) sensor (d) cloud server
37. 37.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) microcontroller (c) phone app (d) actuator
38. 38.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
39. 39.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 180 readings take?
40. 40.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?

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