Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 70 · 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.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) through a candle (c) by post (d) over Wi-Fi
2. 2.🌐 In an IoT system, which part carries the data? (a) actuator (b) sensor (c) phone app (d) Wi-Fi
3. 3.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 190 readings take?
4. 4.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
5. 5.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Inside of Toys (d) Internet of Things
6. 6.🔍 Which is the odd one out? (a) a battery torch (b) a plain wall switch (c) a paper calendar (d) a Wi-Fi weather station
7. 7.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
9. 9.What does the Wi-Fi link do? (a) stores data online (b) acts on a command (c) carries the data (d) reads values, decides
10. 10.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a fitness band with app (c) a paper calendar (d) a Wi-Fi weather station
11. 11.🏠 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
12. 12.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
13. 13.What does the sensor do? (a) carries the data (b) shows data to you (c) measures the real world (d) stores data online
14. 14.🔍 Which is the odd one out? (a) a battery torch (b) a plain table fan (c) a plain wall switch (d) an app-controlled bulb
15. 15.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
16. 16.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain wall switch (c) a Wi-Fi smart plug (d) a pencil sharpener
17. 17.Which of these is not an IoT device? (a) a smart energy meter (b) a fitness band with app (c) a plain table fan (d) a Wi-Fi smart plug
18. 18.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
19. 19.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
20. 20.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 40 readings take?
21. 21.What does the actuator do? (a) acts on a command (b) stores data online (c) carries the data (d) reads values, decides
22. 22.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
23. 23.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
24. 24.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) it is sent by Wi-Fi (b) the sensor measures (c) the cloud stores it (d) the app shows it
25. 25.🔢 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
26. 26.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a battery torch (d) a fitness band with app
27. 27.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
28. 28.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) actuator (c) phone app (d) cloud server
29. 29.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a smart energy meter (d) a plain wall switch
30. 30.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 110 readings take?
31. 31.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the app shows it
32. 32.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a plain wall switch
33. 33.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a plain table fan (d) a wind-up clock
34. 34.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
35. 35.What does the cloud server do? (a) reads values, decides (b) stores data online (c) shows data to you (d) carries the data
36. 36.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a Wi-Fi weather station (d) a battery torch
37. 37.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) phone app (c) microcontroller (d) actuator
38. 38.What does the phone app do? (a) stores data online (b) acts on a command (c) shows data to you (d) carries the data
39. 39.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the board reads it (b) the sensor measures
40. 40.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?

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