Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 979 · 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 is the FIRST step? (a) the sensor measures (b) the board reads it (c) the app shows it (d) the cloud stores it
2. 2.What does the Wi-Fi link do? (a) reads values, decides (b) carries the data (c) acts on a command (d) measures the real world
3. 3.🔢 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 cloud stores it (d) the sensor measures
4. 4.Which of these is not an IoT device? (a) a plain wall switch (b) a Wi-Fi weather station (c) a smart energy meter (d) a Wi-Fi smart plug
5. 5.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the board reads it (c) it is sent by Wi-Fi (d) the app shows it
6. 6.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
7. 7.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 200 readings take?
8. 8.🔍 Which is the odd one out? (a) a plain wall switch (b) a pencil sharpener (c) a smart energy meter (d) a plain table fan
9. 9.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
10. 10.What does the microcontroller do? (a) carries the data (b) reads values, decides (c) acts on a command (d) stores data online
11. 11.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) microcontroller (c) phone app (d) actuator
12. 12.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
13. 13.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
14. 14.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the cloud stores it
15. 15.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a paper calendar (c) a plain wall switch (d) a plain table fan
16. 16.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
18. 18.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
19. 19.What does the phone app do? (a) reads values, decides (b) shows data to you (c) carries the data (d) measures the real world
20. 20.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a battery torch
21. 21.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?
22. 22.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the app shows it (c) the cloud stores it (d) the board reads it
23. 23.Which of these is an IoT device? (a) a pencil sharpener (b) a Wi-Fi weather station (c) a wind-up clock (d) a plain table fan
24. 24.🌐 In an IoT system, which part measures the real world? (a) sensor (b) actuator (c) Wi-Fi (d) microcontroller
25. 25.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
26. 26.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 5 minutes?
27. 27.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
28. 28.What does the cloud server do? (a) carries the data (b) stores data online (c) measures the real world (d) reads values, decides
29. 29.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) a plain wall switch (d) a smart energy meter
30. 30.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
31. 31.Which of these is an IoT device? (a) a plain wall switch (b) a paper calendar (c) a fitness band with app (d) a pencil sharpener
32. 32.🔢 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
33. 33.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 190 readings take?
34. 34.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) a hand fan (d) lights on from an app
35. 35.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 80 readings take?
36. 36.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
37. 37.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 190 readings take?
38. 38.What does the actuator do? (a) carries the data (b) acts on a command (c) shows data to you (d) stores data online
39. 39.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🔍 Which is the odd one out? (a) a pencil sharpener (b) a smart energy meter (c) a fitness band with app (d) an app-controlled bulb

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