Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 535 · 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.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) lights on from an app (d) a printed map
2. 2.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) it is sent by Wi-Fi (c) the board reads it (d) the cloud stores it
3. 3.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) phone app (c) microcontroller (d) actuator
4. 4.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) actuator (c) phone app (d) cloud server
5. 5.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a battery torch (c) a pencil sharpener (d) a paper calendar
6. 6.What does the Wi-Fi link do? (a) acts on a command (b) measures the real world (c) carries the data (d) shows data to you
7. 7.🌐 In an IoT system, which part measures the real world? (a) phone app (b) Wi-Fi (c) sensor (d) cloud server
8. 8.🌐 What does IoT stand for? (a) Internet of Things (b) Input of Tools (c) Internet of Talk (d) Inside of Toys
9. 9.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
10. 10.🔍 Which is the odd one out? (a) a plain table fan (b) a paper calendar (c) a battery torch (d) a Wi-Fi doorbell camera
11. 11.Which of these is an IoT device? (a) a paper calendar (b) a smart energy meter (c) a wind-up clock (d) a plain table fan
12. 12.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the board reads it
13. 13.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi weather station (c) a battery torch (d) a wind-up clock
14. 14.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) the board reads it (b) it is sent by Wi-Fi
16. 16.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
17. 17.🌐 In an IoT system, which part carries the data? (a) cloud server (b) actuator (c) microcontroller (d) Wi-Fi
18. 18.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
19. 19.🔍 Which is the odd one out? (a) a plain wall switch (b) an app-controlled bulb (c) a wind-up clock (d) a battery torch
20. 20.What does the microcontroller do? (a) shows data to you (b) reads values, decides (c) stores data online (d) measures the real world
21. 21.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
22. 22.What does the actuator do? (a) acts on a command (b) carries the data (c) measures the real world (d) shows data to you
23. 23.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
24. 24.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the cloud stores it (b) the board reads it
25. 25.🔍 Which is the odd one out? (a) a paper calendar (b) a smart energy meter (c) a battery torch (d) a wind-up clock
26. 26.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 20 readings take?
27. 27.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a battery torch (d) a paper calendar
28. 28.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 70 readings take?
29. 29.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
30. 30.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
31. 31.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a wind-up clock (d) an app-controlled bulb
32. 32.What does the sensor do? (a) measures the real world (b) shows data to you (c) stores data online (d) carries the data
33. 33.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
34. 34.What does the phone app do? (a) shows data to you (b) stores data online (c) acts on a command (d) carries the data
35. 35.Which of these is not an IoT device? (a) a paper calendar (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a smart energy meter
36. 36.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) through a candle (d) over Wi-Fi
37. 37.🌐 In an IoT system, which part acts on a command? (a) phone app (b) actuator (c) sensor (d) cloud server
38. 38.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
39. 39.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
40. 40.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?

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