Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 408 · 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.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) microcontroller (c) sensor (d) phone app
2. 2.What does the sensor do? (a) stores data online (b) shows data to you (c) measures the real world (d) carries the data
3. 3.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) Wi-Fi (c) cloud server (d) phone app
4. 4.Which of these is an IoT device? (a) a plain wall switch (b) a smart energy meter (c) a paper calendar (d) a plain table fan
5. 5.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain wall switch (c) a wind-up clock (d) a battery torch
6. 6.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 5 minutes?
7. 7.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
8. 8.Which of these is not an IoT device? (a) a plain wall switch (b) a smart energy meter (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
9. 9.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
10. 10.What does the actuator do? (a) acts on a command (b) shows data to you (c) measures the real world (d) reads values, decides
11. 11.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) phone app (c) sensor (d) actuator
12. 12.🏠 Which is a smart-home example? (a) a hand fan (b) lights on from an app (c) a printed map (d) a candle in a jar
13. 13.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a fitness band with app (d) a plain wall switch
14. 14.Which of these is an IoT device? (a) a battery torch (b) a fitness band with app (c) a plain table fan (d) a paper calendar
15. 15.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 190 readings take?
16. 16.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the cloud stores it (c) the app shows it (d) it is sent by Wi-Fi
18. 18.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) by shouting (d) over Wi-Fi
19. 19.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi smart plug (c) a fitness band with app (d) a Wi-Fi doorbell camera
20. 20.🔍 Which is the odd one out? (a) a battery torch (b) a pencil sharpener (c) a paper calendar (d) an app-controlled bulb
21. 21.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) a pencil sharpener (d) a Wi-Fi smart plug
22. 22.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the board reads it
23. 23.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Input of Tools (d) Internet of Things
24. 24.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
25. 25.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?
26. 26.🔢 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
27. 27.Which of these is an IoT device? (a) a plain wall switch (b) an app-controlled bulb (c) a wind-up clock (d) a battery torch
28. 28.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
29. 29.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
30. 30.Which of these is not an IoT device? (a) an app-controlled bulb (b) a plain table fan (c) a fitness band with app (d) a Wi-Fi weather station
31. 31.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
32. 32.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the sensor measures (b) the cloud stores it
33. 33.🌐 In an IoT system, which part stores data online? (a) actuator (b) microcontroller (c) cloud server (d) Wi-Fi
34. 34.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the sensor measures (b) the app shows it
35. 35.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
36. 36.🌐 In an IoT system, which part carries the data? (a) phone app (b) microcontroller (c) Wi-Fi (d) cloud server
37. 37.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
38. 38.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a paper calendar (d) a Wi-Fi doorbell camera
39. 39.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
40. 40.🔍 Which is the odd one out? (a) a plain table fan (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a paper calendar

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