Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 940 · 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 the actuator do? (a) shows data to you (b) measures the real world (c) acts on a command (d) stores data online
2. 2.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
3. 3.🔍 Which is the odd one out? (a) a fitness band with app (b) a battery torch (c) a Wi-Fi doorbell camera (d) a smart energy meter
4. 4.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Inside of Toys (d) Input of Tools
5. 5.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a pencil sharpener
6. 6.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) microcontroller (c) phone app (d) cloud server
7. 7.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
8. 8.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) a paper calendar (d) a fitness band with app
9. 9.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
10. 10.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
11. 11.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a fitness band with app (d) a plain wall switch
12. 12.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) it is sent by Wi-Fi
13. 13.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) lights on from an app (d) a printed map
14. 14.What does the Wi-Fi link do? (a) stores data online (b) acts on a command (c) measures the real world (d) carries the data
15. 15.Which of these is not an IoT device? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
16. 16.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
17. 17.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
18. 18.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a wind-up clock
19. 19.Which of these is an IoT device? (a) a plain wall switch (b) an app-controlled bulb (c) a pencil sharpener (d) a battery torch
20. 20.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the sensor measures
21. 21.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
22. 22.🔍 Which is the odd one out? (a) a pencil sharpener (b) a smart energy meter (c) a plain wall switch (d) a wind-up clock
23. 23.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a pencil sharpener (c) a smart energy meter (d) an app-controlled bulb
24. 24.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the sensor measures (b) the cloud stores it
25. 25.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
26. 26.What does the microcontroller do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) shows data to you
27. 27.What does the sensor do? (a) carries the data (b) acts on a command (c) measures the real world (d) shows data to you
28. 28.Which of these is an IoT device? (a) a plain wall switch (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a paper calendar
29. 29.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
30. 30.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a paper calendar (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
31. 31.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
33. 33.What does the cloud server do? (a) shows data to you (b) stores data online (c) acts on a command (d) measures the real world
34. 34.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the board reads it (c) the app shows it (d) the cloud stores it
35. 35.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain table fan (c) a plain wall switch (d) a paper calendar
36. 36.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
37. 37.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
38. 38.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
39. 39.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) through a candle (d) over Wi-Fi

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