Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 367 · 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 smart energy meter (b) a fitness band with app (c) a plain wall switch (d) a Wi-Fi doorbell camera
2. 2.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
3. 3.🔍 Which is the odd one out? (a) a plain table fan (b) a paper calendar (c) a fitness band with app (d) a wind-up clock
4. 4.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
5. 5.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a Wi-Fi weather station
6. 6.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi weather station (c) a paper calendar (d) a plain wall switch
7. 7.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
8. 8.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the cloud stores it
9. 9.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a smart energy meter (d) a pencil sharpener
10. 10.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) cloud server (c) microcontroller (d) actuator
11. 11.What does the microcontroller do? (a) shows data to you (b) stores data online (c) measures the real world (d) reads values, decides
12. 12.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) Wi-Fi (c) cloud server (d) phone app
13. 13.🏠 Which is a smart-home example? (a) a hand fan (b) a printed map (c) a candle in a jar (d) lights on from an app
14. 14.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a battery torch
15. 15.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
16. 16.🔢 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
17. 17.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
18. 18.🌐 In an IoT system, which part carries the data? (a) phone app (b) actuator (c) sensor (d) Wi-Fi
19. 19.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
20. 20.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 40 readings take?
21. 21.🌐 In an IoT system, which part shows data to you? (a) phone app (b) sensor (c) Wi-Fi (d) microcontroller
22. 22.What does the sensor do? (a) measures the real world (b) reads values, decides (c) carries the data (d) shows data to you
23. 23.Which of these is not an IoT device? (a) a wind-up clock (b) a smart energy meter (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
24. 24.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the board reads it
25. 25.🌐 What does IoT stand for? (a) Internet of Things (b) Input of Tools (c) Internet of Talk (d) Inside of Toys
26. 26.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) through a candle (c) over Wi-Fi (d) by shouting
27. 27.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) it is sent by Wi-Fi (c) the app shows it (d) the cloud stores it
28. 28.Which of these is an IoT device? (a) a wind-up clock (b) a Wi-Fi weather station (c) a plain wall switch (d) a paper calendar
29. 29.🔍 Which is the odd one out? (a) a wind-up clock (b) a battery torch (c) a Wi-Fi smart plug (d) a paper calendar
30. 30.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a battery torch
31. 31.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a smart energy meter (d) a pencil sharpener
32. 32.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi smart plug (c) a smart energy meter (d) an app-controlled bulb
34. 34.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) it is sent by Wi-Fi (b) the cloud stores it
36. 36.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 10 minutes?
37. 37.Which of these is an IoT device? (a) a plain table fan (b) an app-controlled bulb (c) a plain wall switch (d) a battery torch
38. 38.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
39. 39.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 130 readings take?
40. 40.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?

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