Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 823 · 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.🔍 Which is the odd one out? (a) a battery torch (b) a paper calendar (c) a plain wall switch (d) a Wi-Fi smart plug
2. 2.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi weather station (c) a smart energy meter (d) an app-controlled bulb
3. 3.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?
4. 4.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a wind-up clock
5. 5.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) phone app (c) Wi-Fi (d) sensor
6. 6.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a fitness band with app (d) a battery torch
7. 7.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
8. 8.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
9. 9.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
10. 10.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
11. 11.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
12. 12.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
13. 13.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) Wi-Fi (c) actuator (d) cloud server
15. 15.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the cloud stores it”? (a) the cloud stores it (b) the app shows it
16. 16.What does the microcontroller do? (a) measures the real world (b) stores data online (c) acts on a command (d) reads values, decides
17. 17.🌐 What does IoT stand for? (a) Internet of Things (b) Input of Tools (c) Inside of Toys (d) Internet of Talk
18. 18.🌐 In an IoT system, which part shows data to you? (a) phone app (b) cloud server (c) sensor (d) actuator
19. 19.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
20. 20.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the cloud stores it (b) the sensor measures
21. 21.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) a printed map (d) lights on from an app
22. 22.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) an app-controlled bulb (d) a fitness band with app
23. 23.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
24. 24.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) the app shows it (c) it is sent by Wi-Fi (d) the cloud stores it
25. 25.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) through a candle (d) over Wi-Fi
26. 26.🌐 In an IoT system, which part acts on a command? (a) phone app (b) actuator (c) microcontroller (d) Wi-Fi
27. 27.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
28. 28.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a smart energy meter (d) a plain wall switch
29. 29.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 160 readings take?
30. 30.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
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 sensor measures (c) it is sent by Wi-Fi (d) the app shows it
32. 32.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
33. 33.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a paper calendar (d) a fitness band with app
34. 34.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the board reads it (b) the sensor measures
35. 35.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
36. 36.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a smart energy meter
37. 37.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a pencil sharpener (d) a plain table fan
38. 38.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
40. 40.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi weather station (c) a pencil sharpener (d) a plain table fan

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