Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 249 · 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 is the odd one out? (a) an app-controlled bulb (b) a fitness band with app (c) a paper calendar (d) a Wi-Fi smart plug
2. 2.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a pencil sharpener (d) a Wi-Fi weather station
3. 3.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 40 readings take?
4. 4.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
5. 5.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
6. 6.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) a plain wall switch (d) a fitness band with app
7. 7.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) sensor (c) phone app (d) microcontroller
8. 8.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
9. 9.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 40 readings take?
10. 10.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 80 readings take?
11. 11.🔍 Which is the odd one out? (a) a plain wall switch (b) a fitness band with app (c) a plain table fan (d) a pencil sharpener
12. 12.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) sensor (c) actuator (d) cloud server
13. 13.🏠 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
14. 14.🔍 Which is the odd one out? (a) a smart energy meter (b) a wind-up clock (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
15. 15.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) a smart energy meter (d) a plain wall switch
16. 16.🌐 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
17. 17.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
18. 18.What does the phone app do? (a) carries the data (b) reads values, decides (c) measures the real world (d) shows data to you
19. 19.What does the sensor do? (a) measures the real world (b) reads values, decides (c) acts on a command (d) shows data to you
20. 20.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) microcontroller (c) actuator (d) Wi-Fi
21. 21.🔢 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
22. 22.🔢 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 app shows it (c) the sensor measures (d) the board reads it
23. 23.Which of these is not an IoT device? (a) a wind-up clock (b) an app-controlled bulb (c) a smart energy meter (d) a fitness band with app
24. 24.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the app shows it (d) the sensor measures
25. 25.What does the cloud server do? (a) stores data online (b) reads values, decides (c) carries the data (d) shows data to you
26. 26.🔢 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
27. 27.What does the Wi-Fi link do? (a) carries the data (b) stores data online (c) acts on a command (d) reads values, decides
28. 28.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a smart energy meter (d) a battery torch
29. 29.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
30. 30.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
32. 32.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 30 readings take?
33. 33.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) a plain table fan (d) a pencil sharpener
34. 34.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
35. 35.🌐 In an IoT system, which part acts on a command? (a) actuator (b) phone app (c) cloud server (d) Wi-Fi
36. 36.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) actuator (c) phone app (d) sensor
38. 38.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 200 readings take?
40. 40.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the board reads it

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