Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 753 · 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 of these is an IoT device? (a) a paper calendar (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a wind-up clock
2. 2.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a battery torch
3. 3.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
4. 4.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
5. 5.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a wind-up clock (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
6. 6.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 100 readings take?
7. 7.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) microcontroller (c) sensor (d) phone app
8. 8.🔍 Which is the odd one out? (a) a wind-up clock (b) a paper calendar (c) a plain table fan (d) an app-controlled bulb
9. 9.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Inside of Toys (d) Input of Tools
10. 10.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🏠 Which is a smart-home example? (a) lights on from an app (b) a candle in a jar (c) a printed map (d) a hand fan
13. 13.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
14. 14.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the sensor measures (c) the app shows it (d) it is sent by Wi-Fi
16. 16.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by post (d) by shouting
18. 18.Which of these is an IoT device? (a) a pencil sharpener (b) a plain table fan (c) an app-controlled bulb (d) a battery torch
19. 19.🔍 Which is the odd one out? (a) a battery torch (b) a pencil sharpener (c) a paper calendar (d) a Wi-Fi doorbell camera
20. 20.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 40 readings take?
21. 21.🌐 In an IoT system, which part carries the data? (a) cloud server (b) Wi-Fi (c) microcontroller (d) sensor
22. 22.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a pencil sharpener (d) a paper calendar
23. 23.Which of these is not an IoT device? (a) an app-controlled bulb (b) a paper calendar (c) a fitness band with app (d) a Wi-Fi doorbell camera
24. 24.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
26. 26.Which of these is not an IoT device? (a) a fitness band with app (b) a plain wall switch (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
27. 27.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) actuator (c) phone app (d) cloud server
28. 28.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a battery torch (d) an app-controlled bulb
29. 29.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 100 readings take?
30. 30.What does the sensor do? (a) reads values, decides (b) stores data online (c) carries the data (d) measures the real world
31. 31.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) the app shows it (b) it is sent by Wi-Fi
32. 32.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
33. 33.🔢 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
34. 34.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a Wi-Fi weather station (d) a battery torch
35. 35.🌐 In an IoT system, which part acts on a command? (a) actuator (b) sensor (c) microcontroller (d) cloud server
36. 36.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a plain wall switch (d) a smart energy meter
37. 37.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 50 readings take?
38. 38.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
39. 39.🔢 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
40. 40.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?

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