Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 881 · 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 Wi-Fi smart plug (b) a paper calendar (c) a smart energy meter (d) a fitness band with app
2. 2.What does the microcontroller do? (a) reads values, decides (b) measures the real world (c) carries the data (d) stores data online
3. 3.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
4. 4.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 160 readings take?
5. 5.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 160 readings take?
6. 6.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
7. 7.What does the cloud server do? (a) shows data to you (b) carries the data (c) acts on a command (d) stores data online
8. 8.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
9. 9.What does the actuator do? (a) measures the real world (b) stores data online (c) reads values, decides (d) acts on a command
10. 10.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
11. 11.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) microcontroller (c) sensor (d) cloud server
12. 12.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🌐 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
14. 14.What does the sensor do? (a) reads values, decides (b) acts on a command (c) measures the real world (d) stores data online
15. 15.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) it is sent by Wi-Fi (b) the sensor measures
16. 16.🌐 In an IoT system, which part measures the real world? (a) phone app (b) sensor (c) microcontroller (d) Wi-Fi
17. 17.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the app shows it (b) the sensor measures
18. 18.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
19. 19.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a plain wall switch (d) a smart energy meter
20. 20.🔍 Which is the odd one out? (a) a paper calendar (b) a battery torch (c) a Wi-Fi smart plug (d) a plain table fan
21. 21.🔢 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
22. 22.🔢 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 app shows it (d) the sensor measures
23. 23.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a smart energy meter (c) a plain table fan (d) a fitness band with app
24. 24.Which of these is an IoT device? (a) a pencil sharpener (b) a paper calendar (c) a battery torch (d) a Wi-Fi smart plug
25. 25.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a candle in a jar (d) a hand fan
26. 26.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
27. 27.What does the phone app do? (a) measures the real world (b) stores data online (c) shows data to you (d) acts on a command
28. 28.Which of these is not an IoT device? (a) a paper calendar (b) a Wi-Fi weather station (c) a fitness band with app (d) a Wi-Fi smart plug
29. 29.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the board reads it (c) it is sent by Wi-Fi (d) the cloud stores it
30. 30.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) a wind-up clock (d) a Wi-Fi doorbell camera
31. 31.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) cloud server (c) microcontroller (d) actuator
33. 33.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
34. 34.What does the Wi-Fi link do? (a) reads values, decides (b) acts on a command (c) shows data to you (d) carries the data
35. 35.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
36. 36.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
37. 37.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
38. 38.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) a plain table fan (d) an app-controlled bulb
39. 39.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Input of Tools (d) Internet of Talk
40. 40.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?

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