Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 712 · 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.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by shouting (d) by post
2. 2.What does the actuator do? (a) acts on a command (b) shows data to you (c) measures the real world (d) stores data online
3. 3.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
4. 4.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
5. 5.🔍 Which is the odd one out? (a) a fitness band with app (b) a smart energy meter (c) a Wi-Fi smart plug (d) a pencil sharpener
6. 6.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) the sensor measures
7. 7.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the app shows it (c) the cloud stores it (d) the board reads it
8. 8.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a wind-up clock (d) a smart energy meter
9. 9.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
10. 10.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a printed map (d) a hand fan
12. 12.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 50 readings take?
13. 13.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
14. 14.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
15. 15.What does the phone app do? (a) shows data to you (b) measures the real world (c) carries the data (d) reads values, decides
16. 16.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
17. 17.🔢 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
18. 18.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Things (d) Internet of Talk
19. 19.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the cloud stores it”? (a) the cloud stores it (b) the app shows it
20. 20.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the board reads it (c) the cloud stores it (d) the sensor measures
21. 21.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
22. 22.Which of these is not an IoT device? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a fitness band with app (d) an app-controlled bulb
23. 23.Which of these is not an IoT device? (a) a paper calendar (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a smart energy meter
24. 24.🔍 Which is the odd one out? (a) a battery torch (b) a pencil sharpener (c) a wind-up clock (d) an app-controlled bulb
25. 25.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) an app-controlled bulb (d) a pencil sharpener
26. 26.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a battery torch (d) a fitness band with app
27. 27.What does the cloud server do? (a) shows data to you (b) stores data online (c) reads values, decides (d) measures the real world
28. 28.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
29. 29.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a paper calendar
30. 30.🔢 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
31. 31.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 10 minutes?
32. 32.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🔢 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
34. 34.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
35. 35.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
36. 36.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a pencil sharpener (d) a wind-up clock
37. 37.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
38. 38.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 80 readings take?
39. 39.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 70 readings take?
40. 40.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) actuator (c) Wi-Fi (d) cloud server

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