Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 62 · 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 not an IoT device? (a) an app-controlled bulb (b) a battery torch (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
2. 2.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 120 readings take?
3. 3.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
4. 4.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
5. 5.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
6. 6.🌐 In an IoT system, which part carries the data? (a) actuator (b) Wi-Fi (c) sensor (d) cloud server
7. 7.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
8. 8.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a wind-up clock
9. 9.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
10. 10.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a battery torch
11. 11.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
12. 12.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) lights on from an app (d) a printed map
13. 13.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) through a candle (c) by shouting (d) over Wi-Fi
15. 15.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a fitness band with app
16. 16.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
17. 17.🔍 Which is the odd one out? (a) a fitness band with app (b) a battery torch (c) a smart energy meter (d) a Wi-Fi smart plug
18. 18.What does the Wi-Fi link do? (a) measures the real world (b) acts on a command (c) shows data to you (d) carries the data
19. 19.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 10 minutes?
20. 20.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
21. 21.🌐 In an IoT system, which part measures the real world? (a) sensor (b) actuator (c) phone app (d) microcontroller
22. 22.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a wind-up clock (c) a pencil sharpener (d) a paper calendar
23. 23.Which of these is not an IoT device? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a fitness band with app
24. 24.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Internet of Things (d) Input of Tools
25. 25.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
26. 26.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
27. 27.🌐 In an IoT system, which part shows data to you? (a) sensor (b) Wi-Fi (c) microcontroller (d) phone app
28. 28.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
29. 29.What does the phone app do? (a) shows data to you (b) acts on a command (c) stores data online (d) carries the data
30. 30.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
31. 31.Which of these is not an IoT device? (a) a smart energy meter (b) a wind-up clock (c) an app-controlled bulb (d) a Wi-Fi smart plug
32. 32.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a plain table fan
33. 33.What does the actuator do? (a) stores data online (b) measures the real world (c) carries the data (d) acts on a command
34. 34.🔍 Which is the odd one out? (a) a paper calendar (b) a fitness band with app (c) an app-controlled bulb (d) a Wi-Fi weather station
35. 35.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
36. 36.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
37. 37.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) actuator (c) phone app (d) microcontroller
38. 38.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) it is sent by Wi-Fi (c) the sensor measures (d) the app shows it
39. 39.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?

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