Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 717 · 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.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 60 readings take?
2. 2.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
3. 3.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) cloud server (c) Wi-Fi (d) microcontroller
4. 4.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
5. 5.🌐 In an IoT system, which part acts on a command? (a) actuator (b) sensor (c) microcontroller (d) Wi-Fi
6. 6.🌐 In an IoT system, which part carries the data? (a) cloud server (b) Wi-Fi (c) sensor (d) actuator
7. 7.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a fitness band with app (d) a paper calendar
8. 8.What does the phone app do? (a) stores data online (b) acts on a command (c) reads values, decides (d) shows data to you
9. 9.Which of these is not an IoT device? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a smart energy meter
10. 10.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 battery torch
11. 11.🌐 In an IoT system, which part shows data to you? (a) actuator (b) Wi-Fi (c) cloud server (d) phone app
12. 12.🔢 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
13. 13.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 170 readings take?
14. 14.What does the microcontroller do? (a) reads values, decides (b) shows data to you (c) carries the data (d) stores data online
15. 15.Which of these is an IoT device? (a) a pencil sharpener (b) a paper calendar (c) a Wi-Fi doorbell camera (d) a plain wall switch
16. 16.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the app shows it (b) the cloud stores it
17. 17.Which of these is an IoT device? (a) a plain wall switch (b) a battery torch (c) a fitness band with app (d) a wind-up clock
18. 18.🔍 Which is the odd one out? (a) a smart energy meter (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a wind-up clock
19. 19.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the sensor measures (c) the cloud stores it (d) it is sent by Wi-Fi
20. 20.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
21. 21.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
22. 22.What does the actuator do? (a) acts on a command (b) measures the real world (c) stores data online (d) carries the data
23. 23.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by post (d) by shouting
24. 24.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) it is sent by Wi-Fi (c) the app shows it (d) the sensor measures
25. 25.🏠 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
26. 26.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
27. 27.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) the sensor measures (b) it is sent by Wi-Fi
28. 28.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
29. 29.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
30. 30.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
31. 31.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a paper calendar
32. 32.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the cloud stores it (b) the sensor measures
33. 33.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
34. 34.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
35. 35.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi weather station (c) a battery torch (d) a plain table fan
36. 36.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Input of Tools (d) Internet of Talk
37. 37.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
38. 38.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a battery torch (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
39. 39.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) an app-controlled bulb (d) a wind-up clock
40. 40.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?

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