Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 897 · 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 5 minutes. How many readings arrive in 2 hours?
2. 2.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
3. 3.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Internet of Things (d) Input of Tools
4. 4.What does the Wi-Fi link do? (a) measures the real world (b) carries the data (c) shows data to you (d) reads values, decides
5. 5.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) over Wi-Fi (d) through a candle
6. 6.What does the microcontroller do? (a) reads values, decides (b) shows data to you (c) stores data online (d) carries the data
7. 7.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
9. 9.🔍 Which is the odd one out? (a) a wind-up clock (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
10. 10.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a pencil sharpener
11. 11.What does the phone app do? (a) shows data to you (b) acts on a command (c) stores data online (d) measures the real world
12. 12.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the sensor measures (c) the board reads it (d) the app shows it
13. 13.What does the sensor do? (a) shows data to you (b) reads values, decides (c) stores data online (d) measures the real world
14. 14.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 60 readings take?
17. 17.Which of these is an IoT device? (a) a pencil sharpener (b) a plain table fan (c) a plain wall switch (d) a Wi-Fi smart plug
18. 18.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) a plain wall switch (d) a fitness band with app
19. 19.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) cloud server (c) sensor (d) Wi-Fi
20. 20.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 70 readings take?
21. 21.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
22. 22.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a fitness band with app (c) a smart energy meter (d) a plain table fan
23. 23.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
24. 24.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) it is sent by Wi-Fi (c) the app shows it (d) the sensor measures
25. 25.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
26. 26.🌐 In an IoT system, which part acts on a command? (a) sensor (b) microcontroller (c) actuator (d) phone app
27. 27.🔢 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
28. 28.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
29. 29.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
30. 30.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain wall switch (c) a wind-up clock (d) a fitness band with app
31. 31.🏠 Which is a smart-home example? (a) lights on from an app (b) a candle in a jar (c) a hand fan (d) a printed map
32. 32.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
33. 33.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
34. 34.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
35. 35.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 40 readings take?
36. 36.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
37. 37.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
38. 38.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
39. 39.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) it is sent by Wi-Fi (b) the sensor measures
40. 40.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device

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