Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 129 · 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.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
2. 2.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
3. 3.🌐 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
4. 4.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain table fan (c) a paper calendar (d) a fitness band with app
5. 5.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
6. 6.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
7. 7.🌐 In an IoT system, which part acts on a command? (a) sensor (b) cloud server (c) microcontroller (d) actuator
8. 8.What does the Wi-Fi link do? (a) stores data online (b) carries the data (c) shows data to you (d) acts on a command
9. 9.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) microcontroller (c) actuator (d) phone app
10. 10.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the app shows it (b) the board reads it
11. 11.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 150 readings take?
12. 12.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi smart plug (c) a wind-up clock (d) a pencil sharpener
13. 13.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) actuator (c) microcontroller (d) phone app
14. 14.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
15. 15.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
16. 16.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
17. 17.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
18. 18.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a paper calendar
19. 19.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
20. 20.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a plain table fan
21. 21.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) cloud server (c) microcontroller (d) actuator
22. 22.What does the cloud server do? (a) stores data online (b) acts on a command (c) reads values, decides (d) carries the data
23. 23.Which of these is an IoT device? (a) a fitness band with app (b) a battery torch (c) a plain wall switch (d) a pencil sharpener
24. 24.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a smart energy meter (c) an app-controlled bulb (d) a battery torch
25. 25.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the board reads it
26. 26.What does the microcontroller do? (a) reads values, decides (b) stores data online (c) measures the real world (d) carries the data
27. 27.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the app shows it (c) the board reads it (d) the sensor measures
28. 28.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
29. 29.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
30. 30.🔍 Which is the odd one out? (a) a smart energy meter (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
31. 31.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a plain wall switch (d) a smart energy meter
32. 32.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a fitness band with app (c) a smart energy meter (d) a plain wall switch
33. 33.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) sensor (c) microcontroller (d) phone app
34. 34.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
35. 35.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
36. 36.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 70 readings take?
37. 37.What does the sensor do? (a) measures the real world (b) acts on a command (c) shows data to you (d) carries the data
38. 38.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Inside of Toys (d) Internet of Things
39. 39.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a pencil sharpener (c) a plain wall switch (d) a plain table fan
40. 40.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?

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