Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 697 · 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 200 readings take?
2. 2.Which of these is an IoT device? (a) a paper calendar (b) a wind-up clock (c) a Wi-Fi smart plug (d) a battery torch
3. 3.What does the microcontroller do? (a) shows data to you (b) stores data online (c) acts on a command (d) reads values, decides
4. 4.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a plain table fan
5. 5.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
6. 6.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
7. 7.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a paper calendar (d) a pencil sharpener
8. 8.What does the Wi-Fi link do? (a) measures the real world (b) stores data online (c) carries the data (d) shows data to you
9. 9.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) phone app (c) microcontroller (d) actuator
10. 10.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a plain wall switch
12. 12.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the app shows it (d) the cloud stores it
13. 13.🔍 Which is the odd one out? (a) a plain table fan (b) a wind-up clock (c) a pencil sharpener (d) an app-controlled bulb
14. 14.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a smart energy meter (c) a wind-up clock (d) a Wi-Fi doorbell camera
15. 15.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 180 readings take?
16. 16.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
17. 17.What does the sensor do? (a) stores data online (b) shows data to you (c) reads values, decides (d) measures the real world
18. 18.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
19. 19.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Input of Tools (d) Internet of Things
20. 20.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
21. 21.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
22. 22.Which of these is an IoT device? (a) a plain wall switch (b) a wind-up clock (c) an app-controlled bulb (d) a plain table fan
23. 23.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) sensor (c) phone app (d) Wi-Fi
25. 25.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) cloud server (c) microcontroller (d) actuator
26. 26.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
27. 27.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a fitness band with app (d) a plain table fan
28. 28.Which of these is an IoT device? (a) a plain wall switch (b) a pencil sharpener (c) a battery torch (d) a smart energy meter
29. 29.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the sensor measures (b) the board reads it
30. 30.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?
31. 31.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a battery torch
32. 32.🔢 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) the cloud stores it
33. 33.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) through a candle (c) over Wi-Fi (d) by post
34. 34.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
35. 35.🔍 Which is the odd one out? (a) a plain table fan (b) a wind-up clock (c) a fitness band with app (d) a battery torch
36. 36.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
37. 37.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
38. 38.What does the cloud server do? (a) shows data to you (b) stores data online (c) reads values, decides (d) carries the data
39. 39.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
40. 40.What does the actuator do? (a) stores data online (b) acts on a command (c) carries the data (d) shows data to you

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