Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 127 · 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: “the board reads it” or “the app shows it”? (a) the board reads it (b) the app shows it
2. 2.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Internet of Things (d) Inside of Toys
3. 3.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
4. 4.🌐 In an IoT system, which part shows data to you? (a) phone app (b) microcontroller (c) sensor (d) actuator
5. 5.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) actuator (c) sensor (d) Wi-Fi
6. 6.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
7. 7.Which of these is an IoT device? (a) a plain wall switch (b) a wind-up clock (c) a fitness band with app (d) a paper calendar
8. 8.Which of these is an IoT device? (a) a pencil sharpener (b) a plain wall switch (c) a Wi-Fi weather station (d) a plain table fan
9. 9.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a hand fan (d) a printed map
10. 10.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) cloud server (c) Wi-Fi (d) actuator
11. 11.What does the actuator do? (a) carries the data (b) shows data to you (c) acts on a command (d) stores data online
12. 12.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
13. 13.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) the board reads it (b) it is sent by Wi-Fi
14. 14.🔍 Which is the odd one out? (a) a battery torch (b) a fitness band with app (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
15. 15.Which of these is not an IoT device? (a) a pencil sharpener (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a smart energy meter
16. 16.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
17. 17.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?
18. 18.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a fitness band with app (d) a plain table fan
19. 19.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) the app shows it (b) it is sent by Wi-Fi
20. 20.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
21. 21.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
22. 22.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
23. 23.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 70 readings take?
24. 24.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) sensor (c) microcontroller (d) cloud server
25. 25.What does the microcontroller do? (a) carries the data (b) shows data to you (c) stores data online (d) reads values, decides
26. 26.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
27. 27.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the app shows it (c) the sensor measures (d) the board reads it
28. 28.🔍 Which is the odd one out? (a) a paper calendar (b) a pencil sharpener (c) a wind-up clock (d) a Wi-Fi doorbell camera
29. 29.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a wind-up clock (c) a fitness band with app (d) an app-controlled bulb
30. 30.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 190 readings take?
31. 31.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
32. 32.What does the sensor do? (a) carries the data (b) reads values, decides (c) measures the real world (d) stores data online
33. 33.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
34. 34.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
35. 35.What does the phone app do? (a) measures the real world (b) reads values, decides (c) shows data to you (d) stores data online
36. 36.Which of these is an IoT device? (a) an app-controlled bulb (b) a pencil sharpener (c) a plain wall switch (d) a battery torch
37. 37.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?
38. 38.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) it is sent by Wi-Fi (b) the board reads it
39. 39.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) over Wi-Fi (d) through a candle
40. 40.What does the Wi-Fi link do? (a) carries the data (b) stores data online (c) measures the real world (d) shows data to you

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