Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 198 · 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.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 70 readings take?
2. 2.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
3. 3.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
4. 4.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
5. 5.🌐 In an IoT system, which part acts on a command? (a) phone app (b) actuator (c) sensor (d) Wi-Fi
6. 6.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the sensor measures (c) the board reads it (d) the app shows it
7. 7.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a battery torch (c) a smart energy meter (d) a fitness band with app
8. 8.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
9. 9.🔍 Which is the odd one out? (a) a smart energy meter (b) a paper calendar (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
10. 10.What does the sensor do? (a) measures the real world (b) acts on a command (c) reads values, decides (d) carries the data
11. 11.Which of these is an IoT device? (a) a plain wall switch (b) a battery torch (c) a smart energy meter (d) a wind-up clock
12. 12.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
13. 13.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Input of Tools (d) Inside of Toys
14. 14.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the sensor measures (b) the cloud stores it
15. 15.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
16. 16.What does the actuator do? (a) measures the real world (b) reads values, decides (c) acts on a command (d) carries the data
17. 17.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
18. 18.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
19. 19.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain wall switch (c) a plain table fan (d) a fitness band with app
20. 20.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
21. 21.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the sensor measures (c) the app shows it (d) it is sent by Wi-Fi
22. 22.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
23. 23.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a fitness band with app (d) a smart energy meter
24. 24.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
26. 26.What does the Wi-Fi link do? (a) acts on a command (b) stores data online (c) measures the real world (d) carries the data
27. 27.Which of these is an IoT device? (a) a pencil sharpener (b) a fitness band with app (c) a plain table fan (d) a wind-up clock
28. 28.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) sensor (c) actuator (d) Wi-Fi
29. 29.🔍 Which is the odd one out? (a) a wind-up clock (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
30. 30.What does the phone app do? (a) carries the data (b) acts on a command (c) shows data to you (d) measures the real world
31. 31.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) the app shows it (c) it is sent by Wi-Fi (d) the sensor measures
32. 32.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
33. 33.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
34. 34.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a pencil sharpener
35. 35.🌐 In an IoT system, which part carries the data? (a) actuator (b) phone app (c) microcontroller (d) Wi-Fi
36. 36.🏠 Which is a smart-home example? (a) a hand fan (b) a printed map (c) a candle in a jar (d) lights on from an app
37. 37.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) it is sent by Wi-Fi (b) the app shows it
38. 38.🔍 Which is the odd one out? (a) a plain wall switch (b) a plain table fan (c) a pencil sharpener (d) a smart energy meter
39. 39.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) Wi-Fi (c) actuator (d) phone app

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