Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 971 · 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 app shows it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the app shows it
2. 2.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
3. 3.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) microcontroller (c) Wi-Fi (d) actuator
4. 4.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a wind-up clock (d) an app-controlled bulb
5. 5.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a Wi-Fi smart plug
6. 6.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 110 readings take?
7. 7.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
8. 8.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
9. 9.Which of these is an IoT device? (a) a wind-up clock (b) a plain table fan (c) a pencil sharpener (d) a fitness band with app
10. 10.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 140 readings take?
11. 11.What does the sensor do? (a) reads values, decides (b) shows data to you (c) acts on a command (d) measures the real world
12. 12.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a pencil sharpener (d) a plain table fan
13. 13.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) actuator (c) microcontroller (d) cloud server
14. 14.🌐 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
15. 15.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) the app shows it (c) it is sent by Wi-Fi (d) the cloud stores it
16. 16.Which of these is an IoT device? (a) a paper calendar (b) a pencil sharpener (c) a wind-up clock (d) a Wi-Fi smart plug
17. 17.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the app shows it (b) the cloud stores it
18. 18.What does the microcontroller do? (a) measures the real world (b) reads values, decides (c) acts on a command (d) stores data online
19. 19.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
20. 20.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
21. 21.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
22. 22.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the app shows it (b) the board reads it
23. 23.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Things (d) Internet of Talk
24. 24.🏠 Which is a smart-home example? (a) a printed map (b) a candle in a jar (c) lights on from an app (d) a hand fan
25. 25.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the board reads it (c) the sensor measures (d) it is sent by Wi-Fi
26. 26.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) phone app (c) sensor (d) microcontroller
27. 27.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) the board reads it (b) it is sent by Wi-Fi
28. 28.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
29. 29.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 30 readings take?
30. 30.🔢 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
31. 31.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
32. 32.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🌐 In an IoT system, which part stores data online? (a) phone app (b) actuator (c) cloud server (d) microcontroller
34. 34.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a fitness band with app
35. 35.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
36. 36.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a paper calendar (d) a plain wall switch
39. 39.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 5 minutes?
40. 40.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 200 readings take?

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