Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 716 · 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.Which of these is an IoT device? (a) a plain table fan (b) a wind-up clock (c) a battery torch (d) a Wi-Fi doorbell camera
2. 2.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
3. 3.What does the microcontroller do? (a) shows data to you (b) carries the data (c) measures the real world (d) reads values, decides
4. 4.🌐 In an IoT system, which part acts on a command? (a) phone app (b) microcontroller (c) Wi-Fi (d) actuator
5. 5.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
6. 6.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
7. 7.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a battery torch (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
8. 8.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a plain table fan (d) a paper calendar
9. 9.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
10. 10.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
11. 11.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
13. 13.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) a pencil sharpener (d) a smart energy meter
14. 14.What does the phone app do? (a) shows data to you (b) carries the data (c) acts on a command (d) reads values, decides
15. 15.Which of these is an IoT device? (a) an app-controlled bulb (b) a battery torch (c) a pencil sharpener (d) a paper calendar
16. 16.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
17. 17.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the board reads it (b) the sensor measures
18. 18.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) the sensor measures (b) it is sent by Wi-Fi
19. 19.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
20. 20.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a smart energy meter (d) a fitness band with app
21. 21.Which of these is an IoT device? (a) a plain wall switch (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a wind-up clock
22. 22.Which of these is not an IoT device? (a) a fitness band with app (b) a plain wall switch (c) a smart energy meter (d) an app-controlled bulb
23. 23.What does the cloud server do? (a) acts on a command (b) carries the data (c) measures the real world (d) stores data online
24. 24.🌐 What does IoT stand for? (a) Internet of Things (b) Input of Tools (c) Inside of Toys (d) Internet of Talk
25. 25.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
26. 26.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
27. 27.🔢 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
28. 28.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) through a candle (c) over Wi-Fi (d) by shouting
29. 29.🔢 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
30. 30.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) sensor (c) phone app (d) Wi-Fi
31. 31.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) the sensor measures
32. 32.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?
33. 33.What does the sensor do? (a) acts on a command (b) shows data to you (c) measures the real world (d) carries the data
34. 34.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) Wi-Fi (c) sensor (d) phone app
35. 35.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 120 readings take?
36. 36.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
37. 37.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) it is sent by Wi-Fi (c) the sensor measures (d) the cloud stores it
38. 38.🏠 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
39. 39.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a paper calendar (c) a fitness band with app (d) a Wi-Fi doorbell camera
40. 40.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?

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