Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 184 · 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 20 minutes. How many readings arrive in 1 hour?
2. 2.What does the cloud server do? (a) stores data online (b) carries the data (c) shows data to you (d) reads values, decides
3. 3.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 160 readings take?
4. 4.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
5. 5.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) through a candle (d) over Wi-Fi
6. 6.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
7. 7.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) cloud server (c) microcontroller (d) phone app
8. 8.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a plain wall switch
9. 9.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
10. 10.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
11. 11.Which of these is an IoT device? (a) an app-controlled bulb (b) a battery torch (c) a paper calendar (d) a pencil sharpener
12. 12.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 90 readings take?
13. 13.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
14. 14.🌐 In an IoT system, which part measures the real world? (a) sensor (b) actuator (c) cloud server (d) Wi-Fi
15. 15.🔍 Which is the odd one out? (a) a plain wall switch (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a wind-up clock
16. 16.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the cloud stores it (c) the sensor measures (d) the board reads it
17. 17.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 200 readings take?
18. 18.🏠 Which is a smart-home example? (a) a hand fan (b) lights on from an app (c) a printed map (d) a candle in a jar
19. 19.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Input of Tools (d) Inside of Toys
20. 20.🔍 Which is the odd one out? (a) a plain table fan (b) a paper calendar (c) a smart energy meter (d) a pencil sharpener
21. 21.What does the phone app do? (a) shows data to you (b) stores data online (c) acts on a command (d) carries the data
22. 22.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
23. 23.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the board reads it (c) the cloud stores it (d) the app shows it
24. 24.What does the Wi-Fi link do? (a) reads values, decides (b) carries the data (c) acts on a command (d) shows data to you
25. 25.Which of these is an IoT device? (a) a wind-up clock (b) a smart energy meter (c) a plain wall switch (d) a paper calendar
26. 26.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a fitness band with app (c) a plain wall switch (d) an app-controlled bulb
27. 27.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
28. 28.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi weather station (c) a fitness band with app (d) a Wi-Fi doorbell camera
29. 29.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
30. 30.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain table fan (c) a battery torch (d) a pencil sharpener
31. 31.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🌐 In an IoT system, which part carries the data? (a) phone app (b) Wi-Fi (c) sensor (d) microcontroller
33. 33.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the cloud stores it (b) the board reads it
34. 34.Which of these is an IoT device? (a) a plain table fan (b) a plain wall switch (c) a pencil sharpener (d) a Wi-Fi weather station
35. 35.Which of these is not an IoT device? (a) a fitness band with app (b) an app-controlled bulb (c) a plain table fan (d) a Wi-Fi doorbell camera
36. 36.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the sensor measures
37. 37.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
38. 38.What does the actuator do? (a) shows data to you (b) measures the real world (c) stores data online (d) acts on a command
39. 39.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
40. 40.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 110 readings take?

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