Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 366 · 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.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 180 readings take?
2. 2.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a plain wall switch (c) a plain table fan (d) a paper calendar
3. 3.🏠 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
4. 4.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the sensor measures (c) the app shows it (d) the board reads it
5. 5.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
6. 6.🔍 Which is the odd one out? (a) a battery torch (b) a smart energy meter (c) a paper calendar (d) a wind-up clock
7. 7.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
8. 8.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain wall switch (c) a Wi-Fi smart plug (d) a battery torch
9. 9.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) cloud server (c) sensor (d) phone app
10. 10.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
11. 11.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the sensor measures (c) the board reads it (d) it is sent by Wi-Fi
12. 12.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a paper calendar
13. 13.What does the microcontroller do? (a) reads values, decides (b) measures the real world (c) shows data to you (d) carries the data
14. 14.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🌐 In an IoT system, which part shows data to you? (a) phone app (b) Wi-Fi (c) sensor (d) actuator
16. 16.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a fitness band with app
17. 17.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
18. 18.🔍 Which is the odd one out? (a) a paper calendar (b) a wind-up clock (c) a plain wall switch (d) a Wi-Fi doorbell camera
19. 19.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) through a candle (c) by post (d) over Wi-Fi
20. 20.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Things (d) Internet of Talk
21. 21.🌐 In an IoT system, which part stores data online? (a) cloud server (b) actuator (c) phone app (d) sensor
22. 22.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
23. 23.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
24. 24.🔍 Which is the odd one out? (a) a smart energy meter (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a plain table fan
25. 25.What does the phone app do? (a) stores data online (b) reads values, decides (c) shows data to you (d) measures the real world
26. 26.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
27. 27.🔢 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
28. 28.What does the cloud server do? (a) carries the data (b) shows data to you (c) acts on a command (d) stores data online
29. 29.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) actuator (c) sensor (d) microcontroller
30. 30.What does the actuator do? (a) acts on a command (b) measures the real world (c) stores data online (d) carries the data
31. 31.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
32. 32.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) sensor (c) actuator (d) Wi-Fi
34. 34.Which of these is an IoT device? (a) a smart energy meter (b) a paper calendar (c) a plain wall switch (d) a wind-up clock
35. 35.🔍 Which is the odd one out? (a) a plain table fan (b) a wind-up clock (c) a plain wall switch (d) an app-controlled bulb
36. 36.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
37. 37.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) an app-controlled bulb (d) a paper calendar
38. 38.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
39. 39.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
40. 40.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a wind-up clock (d) a pencil sharpener

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