Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 247 · 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 of these is not an IoT device? (a) a wind-up clock (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
2. 2.What does the actuator do? (a) stores data online (b) measures the real world (c) reads values, decides (d) acts on a command
3. 3.Which of these is an IoT device? (a) a pencil sharpener (b) an app-controlled bulb (c) a wind-up clock (d) a plain wall switch
4. 4.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 5 minutes?
5. 5.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) over Wi-Fi (d) through a candle
6. 6.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
7. 7.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the sensor measures (c) it is sent by Wi-Fi (d) the cloud stores it
8. 8.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
9. 9.What does the microcontroller do? (a) measures the real world (b) acts on a command (c) reads values, decides (d) shows data to you
10. 10.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the cloud stores it (b) the app shows it
12. 12.🔍 Which is the odd one out? (a) a paper calendar (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
13. 13.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
14. 14.🔍 Which is the odd one out? (a) a plain wall switch (b) a battery torch (c) a fitness band with app (d) a paper calendar
15. 15.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) cloud server (c) sensor (d) phone app
16. 16.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
17. 17.🔍 Which is the odd one out? (a) a battery torch (b) a plain wall switch (c) a wind-up clock (d) a Wi-Fi weather station
18. 18.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a battery torch
19. 19.Which of these is an IoT device? (a) a pencil sharpener (b) a battery torch (c) a paper calendar (d) a Wi-Fi smart plug
20. 20.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 100 readings take?
21. 21.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
22. 22.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
23. 23.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) actuator (c) microcontroller (d) sensor
24. 24.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 80 readings take?
25. 25.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a wind-up clock (d) a fitness band with app
26. 26.🏠 Which is a smart-home example? (a) lights on from an app (b) a hand fan (c) a printed map (d) a candle in a jar
27. 27.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
28. 28.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a paper calendar
29. 29.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
30. 30.What does the sensor do? (a) measures the real world (b) stores data online (c) carries the data (d) shows data to you
31. 31.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
32. 32.🌐 In an IoT system, which part carries the data? (a) actuator (b) cloud server (c) Wi-Fi (d) sensor
33. 33.What does the phone app do? (a) stores data online (b) shows data to you (c) acts on a command (d) reads values, decides
34. 34.🔢 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
35. 35.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the cloud stores it (b) the sensor measures (c) the app shows it (d) the board reads it
36. 36.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a battery torch (c) a wind-up clock (d) a pencil sharpener
37. 37.Which of these is not an IoT device? (a) an app-controlled bulb (b) a smart energy meter (c) a Wi-Fi weather station (d) a pencil sharpener
38. 38.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?
39. 39.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a Wi-Fi smart plug (d) an app-controlled bulb
40. 40.🌐 In an IoT system, which part acts on a command? (a) phone app (b) microcontroller (c) actuator (d) Wi-Fi

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