Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 953 · 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.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the board reads it (d) the sensor measures
2. 2.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
3. 3.🌐 In an IoT system, which part acts on a command? (a) sensor (b) Wi-Fi (c) microcontroller (d) actuator
4. 4.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) cloud server (c) microcontroller (d) phone app
5. 5.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a hand fan (d) a candle in a jar
6. 6.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a plain wall switch (d) a wind-up clock
7. 7.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
8. 8.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
9. 9.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a battery torch (d) a Wi-Fi smart plug
10. 10.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
12. 12.🔍 Which is the odd one out? (a) a battery torch (b) a paper calendar (c) a Wi-Fi smart plug (d) a plain wall switch
13. 13.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
14. 14.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Things (d) Internet of Talk
15. 15.What does the sensor do? (a) shows data to you (b) reads values, decides (c) acts on a command (d) measures the real world
16. 16.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) actuator (c) cloud server (d) sensor
17. 17.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) a pencil sharpener (d) an app-controlled bulb
18. 18.What does the cloud server do? (a) shows data to you (b) measures the real world (c) stores data online (d) acts on a command
19. 19.Which of these is an IoT device? (a) a plain table fan (b) a paper calendar (c) a smart energy meter (d) a battery torch
20. 20.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a fitness band with app (c) a Wi-Fi smart plug (d) a pencil sharpener
21. 21.What does the Wi-Fi link do? (a) carries the data (b) shows data to you (c) stores data online (d) measures the real world
22. 22.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 140 readings take?
23. 23.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 60 readings take?
24. 24.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the board reads it (b) the sensor measures
25. 25.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
26. 26.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 30 readings take?
27. 27.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
28. 28.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
29. 29.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the sensor measures (c) the board reads it (d) the cloud stores it
30. 30.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the board reads it
31. 31.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) Wi-Fi (c) actuator (d) cloud server
32. 32.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 100 readings take?
33. 33.What does the actuator do? (a) measures the real world (b) reads values, decides (c) stores data online (d) acts on a command
34. 34.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
35. 35.🔍 Which is the odd one out? (a) a battery torch (b) a plain table fan (c) a paper calendar (d) an app-controlled bulb
36. 36.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a paper calendar (d) a fitness band with app
37. 37.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🌐 In an IoT system, which part measures the real world? (a) phone app (b) Wi-Fi (c) cloud server (d) sensor
39. 39.What does the phone app do? (a) shows data to you (b) stores data online (c) acts on a command (d) reads values, decides
40. 40.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a battery torch (c) a smart energy meter (d) a fitness band with app

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