Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 727 · 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 wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
2. 2.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
3. 3.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 7 minutes?
4. 4.Which of these is an IoT device? (a) a plain wall switch (b) a plain table fan (c) a Wi-Fi weather station (d) a battery torch
5. 5.What does the cloud server do? (a) carries the data (b) reads values, decides (c) acts on a command (d) stores data online
6. 6.🏠 Which is a smart-home example? (a) lights on from an app (b) a candle in a jar (c) a hand fan (d) a printed map
7. 7.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a paper calendar (c) a smart energy meter (d) a Wi-Fi weather station
8. 8.🔍 Which is the odd one out? (a) a fitness band with app (b) a pencil sharpener (c) a smart energy meter (d) an app-controlled bulb
9. 9.🔢 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
10. 10.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) Wi-Fi (c) phone app (d) actuator
11. 11.What does the phone app do? (a) measures the real world (b) reads values, decides (c) shows data to you (d) carries the data
12. 12.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain table fan (c) an app-controlled bulb (d) a wind-up clock
13. 13.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a fitness band with app (d) a plain table fan
14. 14.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a wind-up clock
15. 15.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🌐 In an IoT system, which part stores data online? (a) cloud server (b) phone app (c) sensor (d) actuator
17. 17.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Internet of Things (d) Input of Tools
18. 18.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
19. 19.What does the Wi-Fi link do? (a) shows data to you (b) acts on a command (c) measures the real world (d) carries the data
20. 20.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
21. 21.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 160 readings take?
22. 22.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
23. 23.What does the sensor do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) carries the data
24. 24.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
25. 25.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the sensor measures (c) the cloud stores it (d) the board reads it
26. 26.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
27. 27.Which of these is not an IoT device? (a) a fitness band with app (b) a plain table fan (c) an app-controlled bulb (d) a smart energy meter
28. 28.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) a plain wall switch (d) an app-controlled bulb
29. 29.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 60 readings take?
30. 30.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
31. 31.What does the microcontroller do? (a) reads values, decides (b) carries the data (c) shows data to you (d) stores data online
32. 32.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the cloud stores it”? (a) the app shows it (b) the cloud stores it
33. 33.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) over Wi-Fi (d) by shouting
34. 34.What does the actuator do? (a) reads values, decides (b) carries the data (c) acts on a command (d) stores data online
35. 35.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a battery torch
36. 36.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) Wi-Fi (c) sensor (d) phone app
37. 37.🔍 Which is the odd one out? (a) a wind-up clock (b) a smart energy meter (c) a fitness band with app (d) a Wi-Fi weather station
38. 38.Which of these is an IoT device? (a) a wind-up clock (b) a smart energy meter (c) a battery torch (d) a plain wall switch
39. 39.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?

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