Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 83 · 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.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) actuator (c) sensor (d) phone app
2. 2.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
3. 3.🔍 Which is the odd one out? (a) a plain table fan (b) a battery torch (c) a smart energy meter (d) a pencil sharpener
4. 4.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
5. 5.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) microcontroller (c) sensor (d) actuator
6. 6.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a fitness band with app (c) an app-controlled bulb (d) a battery torch
7. 7.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
8. 8.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a fitness band with app (d) a plain table fan
9. 9.What does the phone app do? (a) carries the data (b) shows data to you (c) acts on a command (d) measures the real world
10. 10.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
11. 11.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a plain table fan (d) an app-controlled bulb
12. 12.What does the cloud server do? (a) carries the data (b) shows data to you (c) measures the real world (d) stores data online
13. 13.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 170 readings take?
14. 14.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) the cloud stores it (b) it is sent by Wi-Fi
15. 15.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
17. 17.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 80 readings take?
18. 18.🌐 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
19. 19.What does the microcontroller do? (a) stores data online (b) reads values, decides (c) carries the data (d) shows data to you
20. 20.What does the actuator do? (a) reads values, decides (b) acts on a command (c) measures the real world (d) stores data online
21. 21.🔍 Which is the odd one out? (a) a pencil sharpener (b) a paper calendar (c) a battery torch (d) a Wi-Fi doorbell camera
22. 22.🌐 In an IoT system, which part stores data online? (a) cloud server (b) sensor (c) microcontroller (d) Wi-Fi
23. 23.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
24. 24.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
25. 25.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a wind-up clock
26. 26.What does the sensor do? (a) reads values, decides (b) measures the real world (c) shows data to you (d) acts on a command
27. 27.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
28. 28.Which of these is not an IoT device? (a) a smart energy meter (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
29. 29.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
30. 30.Which of these is an IoT device? (a) an app-controlled bulb (b) a plain table fan (c) a pencil sharpener (d) a plain wall switch
31. 31.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 9 minutes?
32. 32.🔢 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
33. 33.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
34. 34.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a pencil sharpener
35. 35.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a paper calendar (d) a Wi-Fi doorbell camera
36. 36.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?
37. 37.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) actuator (c) microcontroller (d) Wi-Fi
38. 38.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi weather station (c) a pencil sharpener (d) a fitness band with app
39. 39.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
40. 40.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a paper calendar (d) a pencil sharpener

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