Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 787 · 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 weather station (b) a paper calendar (c) a pencil sharpener (d) a wind-up clock
2. 2.What does the microcontroller do? (a) stores data online (b) acts on a command (c) reads values, decides (d) measures the real world
3. 3.🔢 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
4. 4.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) sensor (c) cloud server (d) Wi-Fi
5. 5.🔢 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 sensor measures (d) the app shows it
6. 6.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a wind-up clock (d) an app-controlled bulb
7. 7.Which of these is an IoT device? (a) a plain wall switch (b) a wind-up clock (c) a smart energy meter (d) a plain table fan
8. 8.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
9. 9.🔍 Which is the odd one out? (a) a battery torch (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
10. 10.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
11. 11.Which of these is an IoT device? (a) a paper calendar (b) a pencil sharpener (c) an app-controlled bulb (d) a wind-up clock
12. 12.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
13. 13.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
14. 14.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) the sensor measures (b) it is sent by Wi-Fi
15. 15.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
16. 16.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
17. 17.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
18. 18.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
19. 19.🌐 In an IoT system, which part acts on a command? (a) actuator (b) Wi-Fi (c) sensor (d) microcontroller
20. 20.🔢 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 app shows it (d) the sensor measures
21. 21.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) a printed map (d) lights on from an app
22. 22.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Internet of Talk (d) Input of Tools
23. 23.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
24. 24.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
25. 25.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
26. 26.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
27. 27.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
28. 28.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a plain wall switch (d) a paper calendar
29. 29.What does the Wi-Fi link do? (a) acts on a command (b) carries the data (c) measures the real world (d) reads values, decides
30. 30.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
31. 31.What does the sensor do? (a) shows data to you (b) reads values, decides (c) acts on a command (d) measures the real world
32. 32.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 80 readings take?
33. 33.🔍 Which is the odd one out? (a) a paper calendar (b) a battery torch (c) a Wi-Fi doorbell camera (d) a plain table fan
34. 34.Which of these is an IoT device? (a) a pencil sharpener (b) a fitness band with app (c) a plain table fan (d) a battery torch
35. 35.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
36. 36.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
37. 37.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
38. 38.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) a paper calendar (d) a Wi-Fi weather station
39. 39.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) over Wi-Fi (d) by shouting
40. 40.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) actuator (c) microcontroller (d) sensor

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