Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 130 · 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, what comes right after “it is sent by Wi-Fi”? (a) the board reads it (b) the sensor measures (c) the app shows it (d) the cloud stores it
2. 2.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
3. 3.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
4. 4.🌐 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
5. 5.Which of these is not an IoT device? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a smart energy meter
6. 6.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 200 readings take?
7. 7.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
8. 8.Which of these is an IoT device? (a) a plain wall switch (b) an app-controlled bulb (c) a battery torch (d) a plain table fan
9. 9.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
10. 10.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🔍 Which is the odd one out? (a) a pencil sharpener (b) an app-controlled bulb (c) a paper calendar (d) a plain wall switch
12. 12.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) cloud server (c) sensor (d) microcontroller
13. 13.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the sensor measures (b) the app shows it
14. 14.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) a fitness band with app (d) a plain table fan
15. 15.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) lights on from an app (d) a candle in a jar
16. 16.🌐 In an IoT system, which part acts on a command? (a) actuator (b) cloud server (c) microcontroller (d) phone app
17. 17.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the board reads it (b) the app shows it
18. 18.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) it is sent by Wi-Fi (c) the board reads it (d) the app shows it
19. 19.🔍 Which is the odd one out? (a) a plain wall switch (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
20. 20.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) it is sent by Wi-Fi (b) the sensor measures (c) the cloud stores it (d) the app shows it
21. 21.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
22. 22.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) a Wi-Fi smart plug (d) a plain table fan
23. 23.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
24. 24.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 180 readings take?
25. 25.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
26. 26.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 50 readings take?
27. 27.Which of these is not an IoT device? (a) an app-controlled bulb (b) a fitness band with app (c) a wind-up clock (d) a smart energy meter
28. 28.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
29. 29.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the app shows it
30. 30.What does the cloud server do? (a) shows data to you (b) reads values, decides (c) carries the data (d) stores data online
31. 31.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a pencil sharpener (d) an app-controlled bulb
33. 33.What does the actuator do? (a) carries the data (b) measures the real world (c) stores data online (d) acts on a command
34. 34.What does the phone app do? (a) stores data online (b) measures the real world (c) acts on a command (d) shows data to you
35. 35.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a plain wall switch (c) a battery torch (d) a wind-up clock
36. 36.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
37. 37.🌐 In an IoT system, which part measures the real world? (a) actuator (b) cloud server (c) phone app (d) sensor
38. 38.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
39. 39.What does the Wi-Fi link do? (a) carries the data (b) reads values, decides (c) stores data online (d) measures the real world
40. 40.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device

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