Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 847 · 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 an IoT device? (a) a battery torch (b) a paper calendar (c) a plain table fan (d) a Wi-Fi smart plug
2. 2.🌐 In an IoT system, which part stores data online? (a) actuator (b) cloud server (c) phone app (d) Wi-Fi
3. 3.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a battery torch
4. 4.🌐 In an IoT system, which part measures the real world? (a) phone app (b) actuator (c) cloud server (d) sensor
5. 5.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
6. 6.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 110 readings take?
7. 7.🔍 Which is the odd one out? (a) a plain table fan (b) a wind-up clock (c) an app-controlled bulb (d) a plain wall switch
8. 8.🔍 Which is the odd one out? (a) a smart energy meter (b) a paper calendar (c) a plain wall switch (d) a wind-up clock
9. 9.Which of these is an IoT device? (a) a battery torch (b) a smart energy meter (c) a plain wall switch (d) a pencil sharpener
10. 10.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a paper calendar (d) an app-controlled bulb
11. 11.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the app shows it (c) the board reads it (d) it is sent by Wi-Fi
12. 12.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a smart energy meter (c) a plain table fan (d) a Wi-Fi smart plug
14. 14.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Internet of Things (d) Input of Tools
15. 15.What does the cloud server do? (a) carries the data (b) stores data online (c) reads values, decides (d) measures the real world
16. 16.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the sensor measures (b) the board reads it
17. 17.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the sensor measures
18. 18.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) microcontroller (c) sensor (d) Wi-Fi
19. 19.What does the Wi-Fi link do? (a) reads values, decides (b) shows data to you (c) carries the data (d) acts on a command
20. 20.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
21. 21.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
22. 22.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi weather station (c) a plain wall switch (d) a Wi-Fi smart plug
23. 23.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
24. 24.🔢 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 board reads it (c) the sensor measures (d) the cloud stores it
25. 25.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) a candle in a jar (d) lights on from an app
26. 26.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the board reads it (c) the sensor measures (d) the app shows it
27. 27.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
28. 28.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
29. 29.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
30. 30.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
31. 31.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) the board reads it (b) it is sent by Wi-Fi
32. 32.🔍 Which is the odd one out? (a) a paper calendar (b) a wind-up clock (c) a Wi-Fi smart plug (d) a plain wall switch
33. 33.🌐 In an IoT system, which part shows data to you? (a) actuator (b) microcontroller (c) phone app (d) sensor
34. 34.What does the sensor do? (a) acts on a command (b) measures the real world (c) stores data online (d) carries the data
35. 35.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a Wi-Fi smart plug (d) a battery torch
36. 36.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a wind-up clock (d) a Wi-Fi doorbell camera
37. 37.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by post (c) by shouting (d) through a candle
38. 38.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
39. 39.🌐 In an IoT system, which part carries the data? (a) actuator (b) microcontroller (c) Wi-Fi (d) cloud server
40. 40.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 70 readings take?

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