Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 67 · 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.🌐 In an IoT system, which part measures the real world? (a) sensor (b) phone app (c) Wi-Fi (d) actuator
3. 3.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
4. 4.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?
5. 5.🌐 In an IoT system, which part acts on a command? (a) actuator (b) phone app (c) microcontroller (d) sensor
6. 6.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
7. 7.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
8. 8.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a paper calendar (c) a plain table fan (d) a battery torch
9. 9.🔍 Which is the odd one out? (a) a plain table fan (b) a wind-up clock (c) a plain wall switch (d) a Wi-Fi smart plug
10. 10.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
11. 11.What does the Wi-Fi link do? (a) measures the real world (b) carries the data (c) reads values, decides (d) acts on a command
12. 12.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
13. 13.What does the actuator do? (a) shows data to you (b) carries the data (c) acts on a command (d) stores data online
14. 14.Which of these is not an IoT device? (a) a smart energy meter (b) a paper calendar (c) a fitness band with app (d) a Wi-Fi doorbell camera
15. 15.What does the phone app do? (a) shows data to you (b) carries the data (c) stores data online (d) reads values, decides
16. 16.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) actuator (c) sensor (d) Wi-Fi
17. 17.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 110 readings take?
18. 18.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
19. 19.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the cloud stores it (c) the sensor measures (d) it is sent by Wi-Fi
20. 20.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
21. 21.🔍 Which is the odd one out? (a) a pencil sharpener (b) a smart energy meter (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
22. 22.Which of these is an IoT device? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a battery torch (d) a plain table fan
23. 23.🌐 In an IoT system, which part stores data online? (a) cloud server (b) microcontroller (c) Wi-Fi (d) actuator
24. 24.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) through a candle (c) over Wi-Fi (d) by post
25. 25.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
26. 26.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 180 readings take?
27. 27.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a smart energy meter (d) a plain wall switch
28. 28.Which of these is not an IoT device? (a) a battery torch (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
29. 29.Which of these is an IoT device? (a) a pencil sharpener (b) a battery torch (c) a paper calendar (d) a smart energy meter
30. 30.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
31. 31.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
32. 32.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the board reads it (c) the app shows it (d) the cloud stores it
33. 33.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a pencil sharpener (d) a fitness band with app
34. 34.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the sensor measures (b) the board reads it
36. 36.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 100 readings take?
37. 37.🌐 In an IoT system, which part carries the data? (a) cloud server (b) phone app (c) Wi-Fi (d) sensor
38. 38.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 30 readings take?
39. 39.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain table fan (c) a fitness band with app (d) a Wi-Fi doorbell camera
40. 40.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?

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