Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 799 · 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.🔢 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
2. 2.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) lights on from an app (d) a printed map
3. 3.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a plain wall switch (d) an app-controlled bulb
4. 4.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
5. 5.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a plain wall switch (c) a pencil sharpener (d) a paper calendar
6. 6.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 70 readings take?
7. 7.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) by post (d) through a candle
8. 8.🌐 What does IoT stand for? (a) Internet of Things (b) Input of Tools (c) Internet of Talk (d) Inside of Toys
9. 9.Which of these is an IoT device? (a) a wind-up clock (b) an app-controlled bulb (c) a paper calendar (d) a plain wall switch
10. 10.What does the cloud server do? (a) reads values, decides (b) shows data to you (c) measures the real world (d) stores data online
11. 11.Which of these is an IoT device? (a) a pencil sharpener (b) a paper calendar (c) a fitness band with app (d) a wind-up clock
12. 12.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
13. 13.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
14. 14.What does the microcontroller do? (a) shows data to you (b) carries the data (c) measures the real world (d) reads values, decides
15. 15.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the cloud stores it (b) the board reads it
16. 16.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
17. 17.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 40 readings take?
18. 18.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) Wi-Fi (c) phone app (d) microcontroller
19. 19.🌐 In an IoT system, which part acts on a command? (a) sensor (b) actuator (c) cloud server (d) phone app
20. 20.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) it is sent by Wi-Fi (c) the app shows it (d) the sensor measures
21. 21.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
22. 22.🔍 Which is the odd one out? (a) a plain wall switch (b) a battery torch (c) a Wi-Fi smart plug (d) a wind-up clock
23. 23.Which of these is an IoT device? (a) a plain wall switch (b) a wind-up clock (c) a paper calendar (d) a Wi-Fi smart plug
24. 24.🌐 In an IoT system, which part shows data to you? (a) actuator (b) Wi-Fi (c) phone app (d) microcontroller
25. 25.🌐 In an IoT system, which part carries the data? (a) cloud server (b) actuator (c) Wi-Fi (d) sensor
26. 26.What does the Wi-Fi link do? (a) carries the data (b) stores data online (c) measures the real world (d) reads values, decides
27. 27.Which of these is not an IoT device? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a Wi-Fi weather station
28. 28.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
29. 29.Which of these is an IoT device? (a) a wind-up clock (b) a pencil sharpener (c) a battery torch (d) a smart energy meter
30. 30.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
31. 31.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a plain table fan (d) an app-controlled bulb
32. 32.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
33. 33.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) the board reads it (c) it is sent by Wi-Fi (d) the sensor measures
34. 34.Which of these is an IoT device? (a) a plain table fan (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a pencil sharpener
35. 35.Which of these is not an IoT device? (a) a wind-up clock (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
36. 36.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 70 readings take?
37. 37.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) microcontroller (c) sensor (d) phone app
38. 38.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
39. 39.🔍 Which is the odd one out? (a) a paper calendar (b) a plain wall switch (c) a fitness band with app (d) a pencil sharpener
40. 40.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?

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