Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 246 · 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 weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
2. 2.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Internet of Things (d) Inside of Toys
3. 3.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
4. 4.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
5. 5.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
6. 6.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 200 readings take?
8. 8.🌐 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
9. 9.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
10. 10.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) microcontroller (c) cloud server (d) actuator
11. 11.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi smart plug (c) a battery torch (d) a plain wall switch
12. 12.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
13. 13.What does the Wi-Fi link do? (a) reads values, decides (b) measures the real world (c) stores data online (d) carries the data
14. 14.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a Wi-Fi weather station (d) a smart energy meter
15. 15.🔍 Which is the odd one out? (a) a pencil sharpener (b) a wind-up clock (c) an app-controlled bulb (d) a battery torch
16. 16.What does the phone app do? (a) carries the data (b) shows data to you (c) measures the real world (d) stores data online
17. 17.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
18. 18.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
19. 19.What does the microcontroller do? (a) reads values, decides (b) acts on a command (c) measures the real world (d) carries the data
20. 20.Which of these is an IoT device? (a) a smart energy meter (b) a paper calendar (c) a plain wall switch (d) a battery torch
21. 21.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the cloud stores it (c) the sensor measures (d) the board reads it
22. 22.What does the cloud server do? (a) reads values, decides (b) acts on a command (c) carries the data (d) stores data online
23. 23.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
24. 24.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the app shows it (c) the sensor measures (d) the cloud stores it
25. 25.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
26. 26.🌐 In an IoT system, which part carries the data? (a) actuator (b) Wi-Fi (c) sensor (d) cloud server
27. 27.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
28. 28.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a Wi-Fi weather station (d) an app-controlled bulb
29. 29.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
30. 30.🌐 In an IoT system, which part acts on a command? (a) phone app (b) Wi-Fi (c) actuator (d) cloud server
31. 31.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the board reads it (b) the cloud stores it
33. 33.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
34. 34.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
35. 35.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) a candle in a jar (d) lights on from an app
36. 36.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) phone app (c) microcontroller (d) sensor
37. 37.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
38. 38.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a wind-up clock (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
39. 39.🌐 In an IoT system, which part measures the real world? (a) sensor (b) Wi-Fi (c) microcontroller (d) cloud server
40. 40.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a paper calendar

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