Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 676 · 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.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
2. 2.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 200 readings take?
3. 3.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
4. 4.What does the cloud server do? (a) measures the real world (b) carries the data (c) reads values, decides (d) stores data online
5. 5.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
6. 6.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a plain wall switch (c) a wind-up clock (d) a plain table fan
7. 7.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
8. 8.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 130 readings take?
9. 9.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the app shows it
10. 10.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 150 readings take?
11. 11.🔍 Which is the odd one out? (a) a plain table fan (b) a plain wall switch (c) a Wi-Fi smart plug (d) a pencil sharpener
12. 12.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 90 readings take?
13. 13.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 30 readings take?
14. 14.What does the actuator do? (a) measures the real world (b) reads values, decides (c) acts on a command (d) stores data online
15. 15.What does the Wi-Fi link do? (a) stores data online (b) reads values, decides (c) carries the data (d) shows data to you
16. 16.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi weather station (c) a plain wall switch (d) a battery torch
17. 17.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
18. 18.What does the phone app do? (a) carries the data (b) acts on a command (c) shows data to you (d) reads values, decides
19. 19.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a fitness band with app (d) a wind-up clock
20. 20.🌐 In an IoT system, which part stores data online? (a) actuator (b) cloud server (c) phone app (d) Wi-Fi
21. 21.What does the sensor do? (a) measures the real world (b) reads values, decides (c) shows data to you (d) acts on a command
22. 22.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) phone app (c) actuator (d) microcontroller
23. 23.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
24. 24.Which of these is an IoT device? (a) a pencil sharpener (b) a battery torch (c) a paper calendar (d) a Wi-Fi smart plug
25. 25.🌐 In an IoT system, which part measures the real world? (a) sensor (b) phone app (c) Wi-Fi (d) actuator
26. 26.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
27. 27.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a smart energy meter (d) a plain wall switch
28. 28.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a fitness band with app
29. 29.🔍 Which is the odd one out? (a) a fitness band with app (b) a pencil sharpener (c) a plain table fan (d) a plain wall switch
30. 30.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi weather station (c) a smart energy meter (d) a battery torch
31. 31.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?
32. 32.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 40 readings take?
34. 34.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) over Wi-Fi (d) by post
35. 35.🔍 Which is the odd one out? (a) a battery torch (b) a wind-up clock (c) a paper calendar (d) a Wi-Fi doorbell camera
36. 36.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a hand fan (d) a candle in a jar
37. 37.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 190 readings take?
39. 39.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the board reads it (c) the cloud stores it (d) the sensor measures
40. 40.Which of these is not an IoT device? (a) a smart energy meter (b) a pencil sharpener (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera

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