Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 348 · 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 5 minutes. How many readings arrive in 5 hours?
2. 2.Which of these is an IoT device? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a battery torch (d) a wind-up clock
3. 3.Which of these is not an IoT device? (a) a smart energy meter (b) a plain table fan (c) an app-controlled bulb (d) a Wi-Fi smart plug
4. 4.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
5. 5.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a pencil sharpener (c) a battery torch (d) a wind-up clock
6. 6.🔍 Which is the odd one out? (a) a smart energy meter (b) a wind-up clock (c) an app-controlled bulb (d) a Wi-Fi smart plug
7. 7.🌐 In an IoT system, which part measures the real world? (a) sensor (b) Wi-Fi (c) microcontroller (d) actuator
8. 8.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 7 minutes?
9. 9.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) the app shows it (c) it is sent by Wi-Fi (d) the sensor measures
10. 10.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 100 readings take?
11. 11.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) phone app (c) actuator (d) sensor
12. 12.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a paper calendar
13. 13.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 110 readings take?
14. 14.What does the microcontroller do? (a) shows data to you (b) carries the data (c) stores data online (d) reads values, decides
15. 15.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🔍 Which is the odd one out? (a) a paper calendar (b) a pencil sharpener (c) a fitness band with app (d) a wind-up clock
17. 17.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
18. 18.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a plain wall switch (d) a Wi-Fi doorbell camera
19. 19.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 180 readings take?
20. 20.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Internet of Talk (d) Input of Tools
21. 21.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 200 readings take?
22. 22.Which of these is not an IoT device? (a) a wind-up clock (b) a fitness band with app (c) a smart energy meter (d) a Wi-Fi smart plug
23. 23.What does the sensor do? (a) carries the data (b) measures the real world (c) acts on a command (d) shows data to you
24. 24.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the sensor measures (c) the app shows it (d) it is sent by Wi-Fi
25. 25.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
26. 26.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 8 minutes?
27. 27.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
28. 28.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the sensor measures (d) the board reads it
29. 29.🔢 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
30. 30.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
31. 31.What does the cloud server do? (a) acts on a command (b) stores data online (c) reads values, decides (d) carries the data
32. 32.What does the phone app do? (a) acts on a command (b) measures the real world (c) stores data online (d) shows data to you
33. 33.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) through a candle (c) by post (d) over Wi-Fi
34. 34.🌐 In an IoT system, which part shows data to you? (a) sensor (b) actuator (c) phone app (d) microcontroller
35. 35.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 140 readings take?
36. 36.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi smart plug (c) a plain table fan (d) a plain wall switch
37. 37.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi weather station (c) a wind-up clock (d) a battery torch
38. 38.🔢 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) it is sent by Wi-Fi (d) the app shows it
39. 39.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a pencil sharpener (d) a Wi-Fi doorbell camera
40. 40.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) actuator (c) Wi-Fi (d) sensor

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