Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 385 · 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.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
2. 2.Which of these is not an IoT device? (a) a wind-up clock (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
3. 3.🌐 In an IoT system, which part stores data online? (a) cloud server (b) sensor (c) phone app (d) actuator
4. 4.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the app shows it (c) the board reads it (d) the sensor measures
5. 5.🔍 Which is the odd one out? (a) a plain wall switch (b) a fitness band with app (c) an app-controlled bulb (d) a Wi-Fi smart plug
6. 6.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
7. 7.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) it is sent by Wi-Fi (b) the sensor measures (c) the cloud stores it (d) the app shows it
8. 8.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) a Wi-Fi weather station (d) a pencil sharpener
9. 9.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
10. 10.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) it is sent by Wi-Fi (b) the board reads it
11. 11.What does the cloud server do? (a) shows data to you (b) stores data online (c) carries the data (d) reads values, decides
12. 12.What does the actuator do? (a) measures the real world (b) carries the data (c) acts on a command (d) reads values, decides
13. 13.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a hand fan (d) a candle in a jar
14. 14.What does the sensor do? (a) reads values, decides (b) acts on a command (c) measures the real world (d) carries the data
15. 15.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
16. 16.🔍 Which is the odd one out? (a) a paper calendar (b) a plain wall switch (c) a battery torch (d) a Wi-Fi weather station
17. 17.🌐 In an IoT system, which part carries the data? (a) sensor (b) Wi-Fi (c) microcontroller (d) cloud server
18. 18.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a smart energy meter (c) a pencil sharpener (d) a Wi-Fi weather station
19. 19.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
20. 20.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the cloud stores it (d) the board reads it
21. 21.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Input of Tools (d) Inside of Toys
22. 22.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) phone app (c) Wi-Fi (d) actuator
23. 23.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
25. 25.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
26. 26.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
27. 27.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a Wi-Fi weather station
28. 28.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
29. 29.🌐 In an IoT system, which part acts on a command? (a) sensor (b) Wi-Fi (c) cloud server (d) actuator
30. 30.🔍 Which is the odd one out? (a) a smart energy meter (b) an app-controlled bulb (c) a plain table fan (d) a fitness band with app
31. 31.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
32. 32.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
33. 33.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
34. 34.🔢 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
35. 35.What does the microcontroller do? (a) carries the data (b) measures the real world (c) reads values, decides (d) acts on a command
36. 36.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a battery torch (c) a plain wall switch (d) a wind-up clock
37. 37.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the board reads it (b) the sensor measures
38. 38.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
39. 39.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) over Wi-Fi (c) through a candle (d) by shouting
40. 40.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?

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