Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 418 · 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 10 bytes. How many bytes do 190 readings take?
2. 2.Which of these is an IoT device? (a) a fitness band with app (b) a pencil sharpener (c) a wind-up clock (d) a plain table fan
3. 3.🌐 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
4. 4.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
5. 5.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
6. 6.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
7. 7.What does the sensor do? (a) stores data online (b) shows data to you (c) measures the real world (d) reads values, decides
8. 8.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) phone app (c) actuator (d) Wi-Fi
9. 9.What does the Wi-Fi link do? (a) stores data online (b) reads values, decides (c) carries the data (d) measures the real world
10. 10.🌐 In an IoT system, which part stores data online? (a) actuator (b) Wi-Fi (c) sensor (d) cloud server
11. 11.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a paper calendar
12. 12.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Input of Tools (d) Internet of Talk
13. 13.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) the cloud stores it (c) it is sent by Wi-Fi (d) the app shows it
14. 14.What does the microcontroller do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) shows data to you
15. 15.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
16. 16.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a plain wall switch (d) a Wi-Fi weather station
17. 17.🌐 In an IoT system, which part shows data to you? (a) actuator (b) Wi-Fi (c) phone app (d) sensor
18. 18.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
19. 19.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a wind-up clock (d) a Wi-Fi smart plug
20. 20.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
21. 21.Which of these is an IoT device? (a) a plain table fan (b) a wind-up clock (c) a pencil sharpener (d) a Wi-Fi smart plug
22. 22.🔍 Which is the odd one out? (a) a plain table fan (b) a paper calendar (c) a plain wall switch (d) a fitness band with app
23. 23.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a plain table fan
24. 24.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) phone app (c) cloud server (d) microcontroller
25. 25.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 130 readings take?
26. 26.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
27. 27.Which of these is an IoT device? (a) a plain wall switch (b) a battery torch (c) an app-controlled bulb (d) a plain table fan
28. 28.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
29. 29.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
30. 30.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
31. 31.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
32. 32.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 180 readings take?
33. 33.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a plain wall switch
34. 34.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
35. 35.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 60 readings take?
36. 36.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
37. 37.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the app shows it (c) it is sent by Wi-Fi (d) the sensor measures
39. 39.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
40. 40.🏠 Which is a smart-home example? (a) a printed map (b) a candle in a jar (c) lights on from an app (d) a hand fan

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