Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 43 · 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 a smart-home example? (a) a printed map (b) a candle in a jar (c) lights on from an app (d) a hand fan
2. 2.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) by post (d) through a candle
3. 3.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a wind-up clock (c) a smart energy meter (d) a Wi-Fi smart plug
4. 4.Which of these is an IoT device? (a) a wind-up clock (b) a fitness band with app (c) a plain wall switch (d) a paper calendar
5. 5.🌐 In an IoT system, which part stores data online? (a) cloud server (b) sensor (c) Wi-Fi (d) actuator
6. 6.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the board reads it (c) the cloud stores it (d) the app shows it
7. 7.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
8. 8.Which of these is not an IoT device? (a) a fitness band with app (b) a smart energy meter (c) an app-controlled bulb (d) a plain wall switch
9. 9.What does the cloud server do? (a) shows data to you (b) measures the real world (c) stores data online (d) reads values, decides
10. 10.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) the cloud stores it (b) it is sent by Wi-Fi
11. 11.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
13. 13.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi weather station (c) a fitness band with app (d) a paper calendar
14. 14.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 90 readings take?
15. 15.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
16. 16.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) actuator (c) phone app (d) sensor
17. 17.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
18. 18.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
19. 19.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
20. 20.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) actuator (c) phone app (d) sensor
21. 21.What does the microcontroller do? (a) carries the data (b) stores data online (c) reads values, decides (d) measures the real world
22. 22.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
23. 23.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 80 readings take?
24. 24.🔍 Which is the odd one out? (a) a smart energy meter (b) a battery torch (c) a pencil sharpener (d) a plain wall switch
25. 25.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
26. 26.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) phone app (c) microcontroller (d) actuator
27. 27.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
28. 28.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) the app shows it (b) it is sent by Wi-Fi
29. 29.🔍 Which is the odd one out? (a) a battery torch (b) a plain wall switch (c) a Wi-Fi smart plug (d) a wind-up clock
30. 30.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
31. 31.🌐 In an IoT system, which part carries the data? (a) sensor (b) actuator (c) cloud server (d) Wi-Fi
32. 32.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
33. 33.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a pencil sharpener (c) a Wi-Fi smart plug (d) an app-controlled bulb
34. 34.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
35. 35.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
36. 36.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?
37. 37.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 80 readings take?
38. 38.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
39. 39.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
40. 40.Which of these is an IoT device? (a) a paper calendar (b) a smart energy meter (c) a wind-up clock (d) a pencil sharpener

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