Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 810 · 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 comes first: “the app shows it” or “the sensor measures”? (a) the app shows it (b) the sensor measures
2. 2.What does the actuator do? (a) stores data online (b) reads values, decides (c) acts on a command (d) measures the real world
3. 3.Which of these is an IoT device? (a) a battery torch (b) a smart energy meter (c) a paper calendar (d) a wind-up clock
4. 4.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
5. 5.Which of these is an IoT device? (a) an app-controlled bulb (b) a pencil sharpener (c) a paper calendar (d) a wind-up clock
6. 6.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 140 readings take?
7. 7.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) sensor (c) phone app (d) Wi-Fi
8. 8.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
9. 9.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
10. 10.Which of these is not an IoT device? (a) a plain wall switch (b) a smart energy meter (c) a fitness band with app (d) a Wi-Fi doorbell camera
11. 11.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
12. 12.🔍 Which is the odd one out? (a) a plain table fan (b) an app-controlled bulb (c) a pencil sharpener (d) a wind-up clock
13. 13.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 160 readings take?
14. 14.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a smart energy meter (d) a wind-up clock
15. 15.🔍 Which is the odd one out? (a) a plain table fan (b) a paper calendar (c) a battery torch (d) a smart energy meter
16. 16.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a paper calendar (d) a smart energy meter
17. 17.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
18. 18.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 90 readings take?
19. 19.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
20. 20.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Internet of Talk (d) Input of Tools
21. 21.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 10 minutes?
22. 22.What does the Wi-Fi link do? (a) shows data to you (b) measures the real world (c) reads values, decides (d) carries the data
23. 23.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
24. 24.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) microcontroller (c) phone app (d) actuator
25. 25.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
26. 26.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 5 minutes?
27. 27.🔢 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 sensor measures (c) the app shows it (d) the board reads it
28. 28.What does the cloud server do? (a) carries the data (b) shows data to you (c) measures the real world (d) stores data online
29. 29.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
30. 30.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) a printed map (d) lights on from an app
31. 31.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
33. 33.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
34. 34.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the board reads it (c) the app shows it (d) it is sent by Wi-Fi
35. 35.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a plain table fan
36. 36.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
37. 37.Which of these is not an IoT device? (a) a fitness band with app (b) an app-controlled bulb (c) a battery torch (d) a smart energy meter
38. 38.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a battery torch (c) a pencil sharpener (d) a plain wall switch
39. 39.🔍 Which is the odd one out? (a) a pencil sharpener (b) a paper calendar (c) a Wi-Fi smart plug (d) a plain wall switch
40. 40.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device

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