Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 807 · 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 is the odd one out? (a) a plain wall switch (b) a battery torch (c) an app-controlled bulb (d) a paper calendar
2. 2.What does the sensor do? (a) acts on a command (b) reads values, decides (c) carries the data (d) measures the real world
3. 3.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
4. 4.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 90 readings take?
5. 5.🔢 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 cloud stores it
6. 6.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a plain wall switch (d) a Wi-Fi doorbell camera
7. 7.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Internet of Things (d) Input of Tools
8. 8.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) microcontroller (c) sensor (d) Wi-Fi
9. 9.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
10. 10.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 150 readings take?
11. 11.🌐 In an IoT system, which part shows data to you? (a) actuator (b) cloud server (c) phone app (d) sensor
12. 12.What does the microcontroller do? (a) reads values, decides (b) stores data online (c) acts on a command (d) shows data to you
13. 13.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a smart energy meter
14. 14.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 190 readings take?
15. 15.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) actuator (c) cloud server (d) phone app
16. 16.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) over Wi-Fi (d) through a candle
17. 17.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a pencil sharpener
18. 18.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
19. 19.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain table fan (c) a paper calendar (d) a wind-up clock
20. 20.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the board reads it (b) the app shows it (c) the sensor measures (d) the cloud stores it
21. 21.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a plain wall switch
22. 22.What does the actuator do? (a) acts on a command (b) carries the data (c) reads values, decides (d) stores data online
23. 23.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
25. 25.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
26. 26.🔢 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
27. 27.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) an app-controlled bulb
28. 28.Which of these is an IoT device? (a) a plain table fan (b) a smart energy meter (c) a plain wall switch (d) a paper calendar
29. 29.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
30. 30.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the sensor measures (b) the app shows it
31. 31.🌐 In an IoT system, which part carries the data? (a) sensor (b) microcontroller (c) actuator (d) Wi-Fi
32. 32.Which of these is an IoT device? (a) a battery torch (b) a plain table fan (c) a paper calendar (d) a fitness band with app
33. 33.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
34. 34.🏠 Which is a smart-home example? (a) lights on from an app (b) a candle in a jar (c) a hand fan (d) a printed map
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the board reads it (b) the cloud stores it
36. 36.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) sensor (c) actuator (d) cloud server
37. 37.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a smart energy meter
38. 38.What does the Wi-Fi link do? (a) measures the real world (b) stores data online (c) shows data to you (d) carries the data
39. 39.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) it is sent by Wi-Fi (b) the app shows it
40. 40.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?

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