Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 112 · 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.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) the cloud stores it (b) it is sent by Wi-Fi
2. 2.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a paper calendar (d) an app-controlled bulb
3. 3.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
4. 4.🌐 In an IoT system, which part measures the real world? (a) actuator (b) phone app (c) sensor (d) cloud server
5. 5.What does the sensor do? (a) carries the data (b) stores data online (c) measures the real world (d) acts on a command
6. 6.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
7. 7.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) a printed map (d) lights on from an app
8. 8.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain table fan (c) a smart energy meter (d) a plain wall switch
9. 9.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a wind-up clock (d) a plain table fan
10. 10.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi smart plug (c) a plain wall switch (d) a battery torch
13. 13.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
14. 14.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 20 readings take?
15. 15.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
17. 17.🔍 Which is the odd one out? (a) a pencil sharpener (b) a wind-up clock (c) a fitness band with app (d) a plain wall switch
18. 18.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the sensor measures (b) the board reads it
19. 19.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
20. 20.Which of these is an IoT device? (a) a pencil sharpener (b) a wind-up clock (c) an app-controlled bulb (d) a plain wall switch
21. 21.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
22. 22.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a battery torch (d) a smart energy meter
23. 23.Which of these is an IoT device? (a) a fitness band with app (b) a plain wall switch (c) a pencil sharpener (d) a wind-up clock
24. 24.🌐 In an IoT system, which part carries the data? (a) cloud server (b) Wi-Fi (c) actuator (d) microcontroller
25. 25.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
26. 26.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 170 readings take?
27. 27.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
28. 28.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Inside of Toys (d) Internet of Things
29. 29.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
30. 30.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a plain table fan
31. 31.🌐 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
32. 32.Which of these is an IoT device? (a) a plain wall switch (b) a smart energy meter (c) a plain table fan (d) a battery torch
33. 33.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) a Wi-Fi doorbell camera (d) a plain wall switch
34. 34.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 80 readings take?
35. 35.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
36. 36.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
37. 37.🔍 Which is the odd one out? (a) a smart energy meter (b) an app-controlled bulb (c) a fitness band with app (d) a plain wall switch
38. 38.🌐 In an IoT system, which part shows data to you? (a) actuator (b) Wi-Fi (c) phone app (d) microcontroller
39. 39.What does the microcontroller do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) stores data online
40. 40.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) actuator (c) microcontroller (d) Wi-Fi

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