Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 168 · 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.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
2. 2.🔢 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 cloud stores it (c) the board reads it (d) the sensor measures
3. 3.🌐 In an IoT system, which part measures the real world? (a) phone app (b) sensor (c) Wi-Fi (d) cloud server
4. 4.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a battery torch (d) a fitness band with app
5. 5.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
6. 6.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
7. 7.🌐 In an IoT system, which part shows data to you? (a) sensor (b) Wi-Fi (c) phone app (d) actuator
8. 8.What does the sensor do? (a) measures the real world (b) reads values, decides (c) carries the data (d) acts on a command
9. 9.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a paper calendar (c) a plain table fan (d) a battery torch
10. 10.What does the actuator do? (a) acts on a command (b) stores data online (c) reads values, decides (d) carries the data
11. 11.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
12. 12.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 9 minutes?
13. 13.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
14. 14.🔢 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
15. 15.🏠 Which is a smart-home example? (a) lights on from an app (b) a candle in a jar (c) a hand fan (d) a printed map
16. 16.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
17. 17.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
18. 18.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a paper calendar
19. 19.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a plain wall switch
20. 20.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a Wi-Fi weather station (d) a pencil sharpener
21. 21.What does the cloud server do? (a) stores data online (b) carries the data (c) measures the real world (d) shows data to you
22. 22.What does the phone app do? (a) acts on a command (b) carries the data (c) shows data to you (d) reads values, decides
23. 23.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
24. 24.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
25. 25.Which of these is an IoT device? (a) a pencil sharpener (b) a battery torch (c) a Wi-Fi doorbell camera (d) a wind-up clock
26. 26.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Internet of Things (d) Inside of Toys
27. 27.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) microcontroller (c) phone app (d) actuator
28. 28.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a plain table fan (d) a smart energy meter
29. 29.🔍 Which is the odd one out? (a) a battery torch (b) a plain wall switch (c) a wind-up clock (d) a fitness band with app
30. 30.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
31. 31.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
33. 33.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) over Wi-Fi (d) by shouting
34. 34.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 30 readings take?
35. 35.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
36. 36.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the app shows it (d) the board reads it
37. 37.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) microcontroller (c) Wi-Fi (d) cloud server
38. 38.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
39. 39.🔍 Which is the odd one out? (a) a plain table fan (b) a paper calendar (c) a plain wall switch (d) a Wi-Fi smart plug
40. 40.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the app shows it (d) the sensor measures

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