Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 397 · 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.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
2. 2.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
3. 3.What does the Wi-Fi link do? (a) acts on a command (b) reads values, decides (c) carries the data (d) shows data to you
4. 4.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
5. 5.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) microcontroller (c) cloud server (d) sensor
6. 6.🔍 Which is the odd one out? (a) a plain wall switch (b) a fitness band with app (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
7. 7.Which of these is not an IoT device? (a) a paper calendar (b) a smart energy meter (c) a Wi-Fi smart plug (d) an app-controlled bulb
8. 8.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
9. 9.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) phone app (c) actuator (d) microcontroller
10. 10.Which of these is not an IoT device? (a) an app-controlled bulb (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
11. 11.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) the board reads it (c) the cloud stores it (d) it is sent by Wi-Fi
12. 12.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) phone app (c) sensor (d) cloud server
13. 13.🌐 Is a Wi-Fi weather station 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 cloud stores it”? (a) the cloud stores it (b) the board reads it
15. 15.Which of these is an IoT device? (a) a plain table fan (b) a paper calendar (c) a pencil sharpener (d) a smart energy meter
16. 16.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 60 readings take?
17. 17.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
18. 18.What does the microcontroller do? (a) reads values, decides (b) measures the real world (c) acts on a command (d) carries the data
19. 19.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) microcontroller (c) sensor (d) actuator
20. 20.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
21. 21.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the app shows it (b) the cloud stores it
22. 22.🔢 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
23. 23.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the board reads it (d) the sensor measures
24. 24.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
25. 25.🏠 Which is a smart-home example? (a) lights on from an app (b) a candle in a jar (c) a printed map (d) a hand fan
26. 26.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
27. 27.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) actuator (c) Wi-Fi (d) sensor
28. 28.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
29. 29.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 200 readings take?
30. 30.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a plain table fan (d) a smart energy meter
31. 31.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a Wi-Fi weather station (d) an app-controlled bulb
32. 32.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
33. 33.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
34. 34.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 70 readings take?
35. 35.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 90 readings take?
36. 36.Which of these is not an IoT device? (a) a smart energy meter (b) a fitness band with app (c) a wind-up clock (d) a Wi-Fi smart plug
37. 37.🔢 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
38. 38.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
39. 39.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a battery torch (d) a Wi-Fi smart plug
40. 40.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a pencil sharpener (c) a fitness band with app (d) a Wi-Fi doorbell camera

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