Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 748 · 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.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 100 readings take?
2. 2.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) the board reads it (c) the sensor measures (d) it is sent by Wi-Fi
3. 3.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
4. 4.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
5. 5.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a smart energy meter
6. 6.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
7. 7.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 190 readings take?
9. 9.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) over Wi-Fi (d) by post
10. 10.Which of these is an IoT device? (a) a battery torch (b) a fitness band with app (c) a pencil sharpener (d) a paper calendar
11. 11.Which of these is not an IoT device? (a) a smart energy meter (b) a plain table fan (c) a fitness band with app (d) a Wi-Fi smart plug
12. 12.🌐 In an IoT system, which part stores data online? (a) actuator (b) sensor (c) cloud server (d) phone app
13. 13.🔍 Which is the odd one out? (a) a plain table fan (b) a pencil sharpener (c) a wind-up clock (d) an app-controlled bulb
14. 14.🌐 In an IoT system, which part carries the data? (a) actuator (b) Wi-Fi (c) cloud server (d) microcontroller
15. 15.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 150 readings take?
16. 16.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a wind-up clock
17. 17.What does the actuator do? (a) shows data to you (b) reads values, decides (c) acts on a command (d) measures the real world
18. 18.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
19. 19.Which of these is not an IoT device? (a) a fitness band with app (b) a smart energy meter (c) a plain wall switch (d) a Wi-Fi weather station
20. 20.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
21. 21.Which of these is an IoT device? (a) a pencil sharpener (b) a plain table fan (c) an app-controlled bulb (d) a plain wall switch
22. 22.🔍 Which is the odd one out? (a) a plain table fan (b) a wind-up clock (c) a Wi-Fi weather station (d) a plain wall switch
23. 23.What does the Wi-Fi link do? (a) shows data to you (b) measures the real world (c) acts on a command (d) carries the data
24. 24.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the sensor measures
25. 25.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
26. 26.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) lights on from an app (d) a hand fan
27. 27.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) Wi-Fi (c) sensor (d) phone app
28. 28.Which of these is not an IoT device? (a) a smart energy meter (b) a fitness band with app (c) a wind-up clock (d) a Wi-Fi smart plug
29. 29.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
30. 30.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
32. 32.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
33. 33.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
34. 34.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
36. 36.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
37. 37.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) it is sent by Wi-Fi (b) the board reads it
38. 38.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 30 readings take?
39. 39.What does the cloud server do? (a) stores data online (b) measures the real world (c) carries the data (d) acts on a command
40. 40.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 50 readings take?

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