Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 174 · 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.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the app shows it (c) it is sent by Wi-Fi (d) the cloud stores it
3. 3.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) sensor (c) cloud server (d) phone app
4. 4.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
5. 5.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain table fan (c) a battery torch (d) a pencil sharpener
6. 6.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
7. 7.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
8. 8.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
9. 9.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a plain wall switch (d) a plain table fan
10. 10.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
11. 11.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
12. 12.Which of these is an IoT device? (a) an app-controlled bulb (b) a plain table fan (c) a battery torch (d) a plain wall switch
13. 13.🔍 Which is the odd one out? (a) a smart energy meter (b) a pencil sharpener (c) a wind-up clock (d) a plain wall switch
14. 14.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) lights on from an app (d) a candle in a jar
15. 15.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 battery torch
16. 16.What does the phone app do? (a) shows data to you (b) stores data online (c) reads values, decides (d) carries the data
17. 17.🌐 In an IoT system, which part carries the data? (a) actuator (b) sensor (c) Wi-Fi (d) cloud server
18. 18.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the board reads it (b) the sensor measures
19. 19.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a paper calendar
20. 20.What does the microcontroller do? (a) reads values, decides (b) stores data online (c) acts on a command (d) shows data to you
21. 21.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a fitness band with app (d) a plain table fan
22. 22.🌐 In an IoT system, which part measures the real world? (a) phone app (b) actuator (c) sensor (d) cloud server
23. 23.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) actuator (c) phone app (d) Wi-Fi
25. 25.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a plain table fan
26. 26.🔢 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
27. 27.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a plain table fan (d) a pencil sharpener
28. 28.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
29. 29.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a plain table fan (c) a wind-up clock (d) a plain wall switch
30. 30.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the sensor measures (c) the board reads it (d) the cloud stores it
31. 31.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
32. 32.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
33. 33.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 130 readings take?
34. 34.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 150 readings take?
35. 35.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
36. 36.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a plain table fan (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
37. 37.Which of these is not an IoT device? (a) a smart energy meter (b) a pencil sharpener (c) an app-controlled bulb (d) a Wi-Fi weather station
38. 38.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Things (d) Internet of Talk
39. 39.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
40. 40.What does the sensor do? (a) shows data to you (b) carries the data (c) measures the real world (d) stores data online

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