Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 513 · 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 25 bytes. How many bytes do 150 readings take?
2. 2.🌐 In an IoT system, which part shows data to you? (a) actuator (b) cloud server (c) Wi-Fi (d) phone app
3. 3.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a smart energy meter (d) a pencil sharpener
4. 4.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 180 readings take?
5. 5.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the sensor measures (b) the board reads it
6. 6.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Things (d) Internet of Talk
7. 7.Which of these is an IoT device? (a) a paper calendar (b) a wind-up clock (c) a pencil sharpener (d) an app-controlled bulb
8. 8.🌐 In an IoT system, which part stores data online? (a) actuator (b) sensor (c) microcontroller (d) cloud server
9. 9.🏠 Which is a smart-home example? (a) lights on from an app (b) a hand fan (c) a printed map (d) a candle in a jar
10. 10.What does the cloud server do? (a) carries the data (b) reads values, decides (c) measures the real world (d) stores data online
11. 11.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
13. 13.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a plain wall switch (d) an app-controlled bulb
14. 14.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi weather station (c) a battery torch (d) a plain table fan
15. 15.What does the microcontroller do? (a) shows data to you (b) measures the real world (c) stores data online (d) reads values, decides
16. 16.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the cloud stores it (c) the board reads it (d) the app shows it
17. 17.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the app shows it (b) the board reads it
18. 18.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
19. 19.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the app shows it (c) the board reads it (d) the cloud stores it
20. 20.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
21. 21.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a paper calendar (d) a plain table fan
22. 22.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the cloud stores it (b) the sensor measures
23. 23.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the board reads it (c) the sensor measures (d) the app shows it
24. 24.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
25. 25.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
26. 26.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a wind-up clock (c) a pencil sharpener (d) a plain table fan
27. 27.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a plain table fan
28. 28.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a plain wall switch (d) a wind-up clock
29. 29.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) it is sent by Wi-Fi (b) the cloud stores it
30. 30.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a smart energy meter (d) a paper calendar
31. 31.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) through a candle (d) over Wi-Fi
32. 32.What does the phone app do? (a) reads values, decides (b) stores data online (c) acts on a command (d) shows data to you
33. 33.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
34. 34.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
35. 35.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
36. 36.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) microcontroller (c) cloud server (d) sensor
37. 37.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?
38. 38.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
39. 39.🔍 Which is the odd one out? (a) a plain table fan (b) a battery torch (c) a plain wall switch (d) a Wi-Fi doorbell camera
40. 40.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?

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