Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 639 · 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 is a smart-home example? (a) a candle in a jar (b) a printed map (c) lights on from an app (d) a hand fan
2. 2.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) cloud server (c) phone app (d) actuator
3. 3.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 180 readings take?
4. 4.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the sensor measures
5. 5.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the board reads it (b) the cloud stores it
6. 6.🔍 Which is the odd one out? (a) a pencil sharpener (b) a smart energy meter (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
7. 7.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
8. 8.🔍 Which is the odd one out? (a) a battery torch (b) a fitness band with app (c) a pencil sharpener (d) a plain table fan
9. 9.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
11. 11.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Things (d) Internet of Talk
12. 12.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
13. 13.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) a smart energy meter (d) a plain wall switch
14. 14.🌐 In an IoT system, which part stores data online? (a) actuator (b) phone app (c) cloud server (d) Wi-Fi
15. 15.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by shouting (d) by post
16. 16.🌐 In an IoT system, which part measures the real world? (a) sensor (b) cloud server (c) microcontroller (d) Wi-Fi
17. 17.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a paper calendar
18. 18.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
19. 19.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
20. 20.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
21. 21.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a pencil sharpener (d) a paper calendar
22. 22.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?
23. 23.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a battery torch (c) a Wi-Fi smart plug (d) an app-controlled bulb
24. 24.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
25. 25.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the app shows it (b) the board reads it
26. 26.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
27. 27.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) the sensor measures (b) it is sent by Wi-Fi
28. 28.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a plain table fan (d) a Wi-Fi weather station
29. 29.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) sensor (c) actuator (d) phone app
30. 30.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
31. 31.What does the phone app do? (a) acts on a command (b) measures the real world (c) stores data online (d) shows data to you
32. 32.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) actuator (c) microcontroller (d) sensor
33. 33.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a wind-up clock
34. 34.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
35. 35.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
36. 36.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a smart energy meter (d) a wind-up clock
37. 37.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🔢 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 board reads it (d) the sensor measures
39. 39.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
40. 40.What does the actuator do? (a) measures the real world (b) carries the data (c) acts on a command (d) stores data online

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