Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 571 · 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 not an IoT device? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a battery torch (d) a Wi-Fi doorbell camera
2. 2.What does the actuator do? (a) shows data to you (b) carries the data (c) stores data online (d) acts on a command
3. 3.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) Wi-Fi (c) phone app (d) microcontroller
4. 4.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
5. 5.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the app shows it (c) the sensor measures (d) the board reads it
6. 6.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) cloud server (c) sensor (d) phone app
7. 7.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 40 readings take?
8. 8.What does the phone app do? (a) acts on a command (b) stores data online (c) shows data to you (d) measures the real world
9. 9.What does the sensor do? (a) reads values, decides (b) stores data online (c) carries the data (d) measures the real world
10. 10.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a paper calendar (d) a smart energy meter
11. 11.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
13. 13.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a wind-up clock
14. 14.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) through a candle (d) by post
15. 15.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
17. 17.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
18. 18.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a smart energy meter (c) a pencil sharpener (d) an app-controlled bulb
19. 19.🔍 Which is the odd one out? (a) a plain table fan (b) a pencil sharpener (c) a battery torch (d) a smart energy meter
20. 20.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
21. 21.🔍 Which is the odd one out? (a) a fitness band with app (b) an app-controlled bulb (c) a plain table fan (d) a smart energy meter
22. 22.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Input of Tools (d) Internet of Talk
23. 23.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain table fan (c) a pencil sharpener (d) a paper calendar
24. 24.Which of these is not an IoT device? (a) a plain wall switch (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
25. 25.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
26. 26.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the app shows it (b) the board reads it
27. 27.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the board reads it (c) it is sent by Wi-Fi (d) the sensor measures
28. 28.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a battery torch (c) a pencil sharpener (d) a plain wall switch
29. 29.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
30. 30.What does the microcontroller do? (a) reads values, decides (b) measures the real world (c) stores data online (d) shows data to you
31. 31.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) phone app (c) microcontroller (d) cloud server
32. 32.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🔍 Which is the odd one out? (a) a fitness band with app (b) a smart energy meter (c) a wind-up clock (d) a Wi-Fi smart plug
34. 34.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
35. 35.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
36. 36.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a fitness band with app (d) a plain wall switch
37. 37.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
39. 39.What does the cloud server do? (a) measures the real world (b) acts on a command (c) stores data online (d) reads values, decides
40. 40.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) it is sent by Wi-Fi (b) the board reads it

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