Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 423 · 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 stores data online? (a) microcontroller (b) sensor (c) phone app (d) cloud server
2. 2.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a plain table fan (c) a paper calendar (d) a battery torch
3. 3.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
4. 4.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by shouting (d) by post
5. 5.What does the Wi-Fi link do? (a) shows data to you (b) carries the data (c) stores data online (d) measures the real world
6. 6.Which of these is not an IoT device? (a) a paper calendar (b) a fitness band with app (c) an app-controlled bulb (d) a smart energy meter
7. 7.🔍 Which is the odd one out? (a) a wind-up clock (b) a fitness band with app (c) a plain table fan (d) a plain wall switch
8. 8.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 150 readings take?
9. 9.🔢 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
10. 10.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 60 readings take?
11. 11.Which of these is an IoT device? (a) a plain table fan (b) a battery torch (c) a smart energy meter (d) a paper calendar
12. 12.What does the phone app do? (a) shows data to you (b) acts on a command (c) stores data online (d) measures the real world
13. 13.What does the cloud server do? (a) acts on a command (b) carries the data (c) stores data online (d) reads values, decides
14. 14.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
15. 15.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 90 readings take?
16. 16.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a printed map (d) a hand fan
17. 17.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a plain table fan (d) a Wi-Fi smart plug
18. 18.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the app shows it (c) the cloud stores it (d) the board reads it
19. 19.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
20. 20.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
21. 21.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a paper calendar
22. 22.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a wind-up clock (d) a Wi-Fi doorbell camera
23. 23.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi smart plug (c) a fitness band with app (d) a Wi-Fi doorbell camera
24. 24.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) phone app (c) Wi-Fi (d) actuator
25. 25.What does the sensor do? (a) reads values, decides (b) stores data online (c) measures the real world (d) carries the data
26. 26.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) cloud server (c) actuator (d) microcontroller
27. 27.Which of these is an IoT device? (a) a battery torch (b) an app-controlled bulb (c) a pencil sharpener (d) a plain wall switch
28. 28.🔢 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) the sensor measures (d) it is sent by Wi-Fi
29. 29.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the app shows it (b) the sensor measures
30. 30.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi smart plug (c) a fitness band with app (d) an app-controlled bulb
31. 31.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the board reads it (d) the cloud stores it
32. 32.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Input of Tools (d) Internet of Things
34. 34.Which of these is an IoT device? (a) a plain table fan (b) a pencil sharpener (c) a paper calendar (d) a Wi-Fi doorbell camera
35. 35.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 130 readings take?
36. 36.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 140 readings take?
37. 37.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
38. 38.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the app shows it (b) the board reads it
39. 39.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 200 readings take?
40. 40.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) the app shows it (c) the board reads it (d) it is sent by Wi-Fi

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