Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 459 · 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, 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
2. 2.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a pencil sharpener (d) a Wi-Fi weather station
3. 3.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a paper calendar (d) a smart energy meter
4. 4.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a smart energy meter
5. 5.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
6. 6.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Internet of Things (d) Input of Tools
7. 7.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) the sensor measures (b) it is sent by Wi-Fi
8. 8.What does the Wi-Fi link do? (a) stores data online (b) reads values, decides (c) measures the real world (d) carries the data
9. 9.🔢 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
10. 10.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
11. 11.What does the sensor do? (a) carries the data (b) acts on a command (c) stores data online (d) measures the real world
12. 12.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
14. 14.🌐 In an IoT system, which part measures the real world? (a) sensor (b) actuator (c) Wi-Fi (d) cloud server
15. 15.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the cloud stores it (c) the board reads it (d) the sensor measures
18. 18.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
19. 19.What does the cloud server do? (a) shows data to you (b) measures the real world (c) stores data online (d) acts on a command
20. 20.🏠 Which is a smart-home example? (a) a hand fan (b) a printed map (c) lights on from an app (d) a candle in a jar
21. 21.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
22. 22.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a fitness band with app (d) a plain wall switch
23. 23.🔍 Which is the odd one out? (a) a battery torch (b) a plain table fan (c) a pencil sharpener (d) a Wi-Fi doorbell camera
24. 24.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) it is sent by Wi-Fi (c) the app shows it (d) the sensor measures
25. 25.🌐 In an IoT system, which part stores data online? (a) actuator (b) Wi-Fi (c) sensor (d) cloud server
26. 26.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
27. 27.Which of these is not an IoT device? (a) a wind-up clock (b) a smart energy meter (c) a fitness band with app (d) a Wi-Fi weather station
28. 28.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) over Wi-Fi (d) by shouting
29. 29.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
30. 30.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a battery torch (d) a plain wall switch
31. 31.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
32. 32.Which of these is an IoT device? (a) a wind-up clock (b) a Wi-Fi smart plug (c) a plain wall switch (d) a pencil sharpener
33. 33.🔍 Which is the odd one out? (a) a pencil sharpener (b) a battery torch (c) an app-controlled bulb (d) a wind-up clock
34. 34.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 200 readings take?
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) the cloud stores it (b) it is sent by Wi-Fi
36. 36.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) it is sent by Wi-Fi (b) the board reads it
37. 37.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the board reads it (b) the app shows it
38. 38.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
39. 39.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
40. 40.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?

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