Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 988 · 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.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
2. 2.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the sensor measures
3. 3.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
4. 4.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a paper calendar (c) a plain wall switch (d) a pencil sharpener
5. 5.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 8 minutes?
6. 6.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) cloud server (c) Wi-Fi (d) sensor
7. 7.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) the board reads it (c) the app shows it (d) it is sent by Wi-Fi
8. 8.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
9. 9.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain wall switch (c) a plain table fan (d) a Wi-Fi smart plug
11. 11.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) it is sent by Wi-Fi (b) the sensor measures (c) the app shows it (d) the cloud stores it
12. 12.🌐 In an IoT system, which part acts on a command? (a) sensor (b) microcontroller (c) Wi-Fi (d) actuator
13. 13.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
14. 14.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the cloud stores it (c) it is sent by Wi-Fi (d) the board reads it
15. 15.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) a printed map (d) lights on from an app
16. 16.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Inside of Toys (d) Input of Tools
17. 17.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
18. 18.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
19. 19.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
20. 20.Which of these is an IoT device? (a) an app-controlled bulb (b) a pencil sharpener (c) a wind-up clock (d) a plain table fan
21. 21.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
22. 22.🔢 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
23. 23.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) sensor (c) phone app (d) Wi-Fi
24. 24.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
25. 25.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?
26. 26.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
27. 27.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
28. 28.Which of these is an IoT device? (a) a pencil sharpener (b) a battery torch (c) a Wi-Fi doorbell camera (d) a plain wall switch
29. 29.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the board reads it (c) the sensor measures (d) the app shows it
30. 30.🔢 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
31. 31.What does the sensor do? (a) shows data to you (b) reads values, decides (c) acts on a command (d) measures the real world
32. 32.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 150 readings take?
33. 33.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 70 readings take?
34. 34.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a battery torch (c) a paper calendar (d) a plain table fan
35. 35.🔢 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
36. 36.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 100 readings take?
37. 37.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
38. 38.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a pencil sharpener (c) an app-controlled bulb (d) a Wi-Fi smart plug
39. 39.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
40. 40.What does the cloud server do? (a) reads values, decides (b) carries the data (c) measures the real world (d) stores data online

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