Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 358 · 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.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
2. 2.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
3. 3.🔍 Which is the odd one out? (a) a pencil sharpener (b) a wind-up clock (c) a battery torch (d) a Wi-Fi weather station
4. 4.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
5. 5.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by shouting (d) by post
6. 6.What does the cloud server do? (a) acts on a command (b) measures the real world (c) stores data online (d) reads values, decides
7. 7.Which of these is not an IoT device? (a) a smart energy meter (b) a fitness band with app (c) a Wi-Fi weather station (d) a pencil sharpener
8. 8.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) phone app (c) actuator (d) sensor
9. 9.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
10. 10.Which of these is an IoT device? (a) a paper calendar (b) a pencil sharpener (c) a fitness band with app (d) a wind-up clock
11. 11.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
12. 12.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) a hand fan (d) lights on from an app
13. 13.What does the actuator do? (a) stores data online (b) acts on a command (c) carries the data (d) shows data to you
14. 14.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
15. 15.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a battery torch
16. 16.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
17. 17.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
18. 18.Which of these is not an IoT device? (a) an app-controlled bulb (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a battery torch
19. 19.What does the sensor do? (a) measures the real world (b) stores data online (c) acts on a command (d) carries the data
20. 20.What does the Wi-Fi link do? (a) measures the real world (b) carries the data (c) reads values, decides (d) stores data online
21. 21.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 110 readings take?
22. 22.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) it is sent by Wi-Fi (b) the sensor measures
23. 23.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the app shows it (b) the cloud stores it
24. 24.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
25. 25.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) microcontroller (c) cloud server (d) sensor
26. 26.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the app shows it (c) the board reads it (d) the sensor measures
27. 27.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
28. 28.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the board reads it (b) the app shows it
29. 29.Which of these is not an IoT device? (a) a plain wall switch (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a smart energy meter
30. 30.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 200 readings take?
31. 31.Which of these is an IoT device? (a) a smart energy meter (b) a plain wall switch (c) a battery torch (d) a paper calendar
32. 32.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 150 readings take?
33. 33.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
34. 34.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a fitness band with app
35. 35.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
36. 36.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the sensor measures (b) the cloud stores it
37. 37.Which of these is an IoT device? (a) a plain table fan (b) an app-controlled bulb (c) a pencil sharpener (d) a wind-up clock
38. 38.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) the cloud stores it (c) the sensor measures (d) it is sent by Wi-Fi
39. 39.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a paper calendar (c) a smart energy meter (d) a Wi-Fi doorbell camera
40. 40.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?

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