Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 444 · 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 board reads it” or “the app shows it”? (a) the app shows it (b) the board reads it
2. 2.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the app shows it (d) the board reads it
3. 3.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a plain wall switch (c) a smart energy meter (d) a fitness band with app
4. 4.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi smart plug (c) a fitness band with app (d) a Wi-Fi weather station
5. 5.Which of these is an IoT device? (a) a paper calendar (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a battery torch
6. 6.What does the microcontroller do? (a) stores data online (b) measures the real world (c) acts on a command (d) reads values, decides
7. 7.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) over Wi-Fi (d) by post
9. 9.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) sensor (c) cloud server (d) actuator
10. 10.🔍 Which is the odd one out? (a) a battery torch (b) a plain wall switch (c) a paper calendar (d) a Wi-Fi smart plug
11. 11.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
12. 12.Which of these is not an IoT device? (a) a smart energy meter (b) a fitness band with app (c) an app-controlled bulb (d) a battery torch
13. 13.Which of these is not an IoT device? (a) a smart energy meter (b) a paper calendar (c) an app-controlled bulb (d) a Wi-Fi weather station
14. 14.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
15. 15.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 60 readings take?
16. 16.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) microcontroller (c) phone app (d) Wi-Fi
17. 17.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the sensor measures (c) the cloud stores it (d) it is sent by Wi-Fi
18. 18.🏠 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
19. 19.Which of these is an IoT device? (a) an app-controlled bulb (b) a wind-up clock (c) a paper calendar (d) a plain table fan
20. 20.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 160 readings take?
21. 21.🌐 In an IoT system, which part stores data online? (a) sensor (b) phone app (c) cloud server (d) actuator
22. 22.What does the sensor do? (a) shows data to you (b) reads values, decides (c) measures the real world (d) stores data online
23. 23.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
24. 24.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
25. 25.🔍 Which is the odd one out? (a) a plain wall switch (b) a plain table fan (c) a smart energy meter (d) a pencil sharpener
26. 26.Which of these is not an IoT device? (a) a plain table fan (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
27. 27.What does the cloud server do? (a) stores data online (b) carries the data (c) acts on a command (d) measures the real world
28. 28.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 70 readings take?
29. 29.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
30. 30.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
31. 31.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
33. 33.🌐 In an IoT system, which part acts on a command? (a) actuator (b) microcontroller (c) Wi-Fi (d) phone app
34. 34.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
35. 35.Which of these is an IoT device? (a) a pencil sharpener (b) a paper calendar (c) a plain wall switch (d) a smart energy meter
36. 36.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 100 readings take?
38. 38.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
39. 39.🔍 Which is the odd one out? (a) a paper calendar (b) a battery torch (c) a pencil sharpener (d) an app-controlled bulb
40. 40.🔍 Which is the odd one out? (a) a wind-up clock (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a plain wall switch

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