Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 875 · 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.🌐 What does IoT stand for? (a) Internet of Things (b) Input of Tools (c) Inside of Toys (d) Internet of Talk
2. 2.🌐 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
3. 3.What does the microcontroller do? (a) carries the data (b) stores data online (c) reads values, decides (d) acts on a command
4. 4.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
5. 5.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) sensor (c) phone app (d) actuator
6. 6.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
7. 7.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
8. 8.🔍 Which is the odd one out? (a) a fitness band with app (b) a wind-up clock (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
9. 9.What does the actuator do? (a) reads values, decides (b) shows data to you (c) acts on a command (d) measures the real world
10. 10.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) actuator (c) Wi-Fi (d) phone app
11. 11.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a pencil sharpener (d) a Wi-Fi smart plug
12. 12.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
13. 13.🔍 Which is the odd one out? (a) a plain table fan (b) an app-controlled bulb (c) a smart energy meter (d) a Wi-Fi smart plug
14. 14.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
15. 15.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) a Wi-Fi smart plug (d) a pencil sharpener
16. 16.Which of these is an IoT device? (a) a plain wall switch (b) a paper calendar (c) a pencil sharpener (d) a Wi-Fi doorbell camera
17. 17.Which of these is an IoT device? (a) a plain wall switch (b) a paper calendar (c) a battery torch (d) a fitness band with app
18. 18.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi weather station (c) a plain wall switch (d) a fitness band with app
19. 19.🔢 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 board reads it (d) the cloud stores it
20. 20.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi weather station (c) a plain table fan (d) a battery torch
21. 21.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a battery torch
22. 22.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a paper calendar (d) an app-controlled bulb
23. 23.What does the phone app do? (a) carries the data (b) measures the real world (c) reads values, decides (d) shows data to you
24. 24.🌐 In an IoT system, which part shows data to you? (a) sensor (b) phone app (c) microcontroller (d) cloud server
25. 25.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) lights on from an app (d) a hand fan
26. 26.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
27. 27.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
28. 28.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) an app-controlled bulb
29. 29.What does the sensor do? (a) reads values, decides (b) measures the real world (c) stores data online (d) carries the data
30. 30.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the sensor measures (d) the app shows it
31. 31.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
32. 32.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
33. 33.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the cloud stores it (b) the board reads it
34. 34.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 190 readings take?
35. 35.🔍 Which is the odd one out? (a) a pencil sharpener (b) an app-controlled bulb (c) a plain table fan (d) a wind-up clock
36. 36.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
37. 37.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a wind-up clock (d) a smart energy meter
38. 38.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
40. 40.What does the Wi-Fi link do? (a) reads values, decides (b) measures the real world (c) carries the data (d) shows data to you

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