Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 417 · 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.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 90 readings take?
2. 2.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) over Wi-Fi (c) through a candle (d) by shouting
3. 3.Which of these is an IoT device? (a) a plain wall switch (b) a plain table fan (c) a battery torch (d) a Wi-Fi smart plug
4. 4.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
5. 5.What does the cloud server do? (a) carries the data (b) measures the real world (c) stores data online (d) acts on a command
6. 6.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) Wi-Fi (c) cloud server (d) sensor
7. 7.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) microcontroller (c) cloud server (d) sensor
8. 8.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) microcontroller (c) Wi-Fi (d) cloud server
9. 9.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
10. 10.🔍 Which is the odd one out? (a) a plain table fan (b) a plain wall switch (c) a pencil sharpener (d) a fitness band with app
11. 11.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
12. 12.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) it is sent by Wi-Fi (c) the sensor measures (d) the cloud stores it
13. 13.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
14. 14.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 130 readings take?
15. 15.🔍 Which is the odd one out? (a) a plain table fan (b) a paper calendar (c) a plain wall switch (d) a Wi-Fi weather station
16. 16.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
17. 17.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain table fan (c) a battery torch (d) a Wi-Fi smart plug
18. 18.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
19. 19.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
20. 20.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
21. 21.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the board reads it (b) the cloud stores it
22. 22.🔍 Which is the odd one out? (a) a plain wall switch (b) a fitness band with app (c) a smart energy meter (d) a Wi-Fi weather station
23. 23.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a fitness band with app
24. 24.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🌐 What does IoT stand for? (a) Internet of Things (b) Input of Tools (c) Inside of Toys (d) Internet of Talk
26. 26.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 60 readings take?
27. 27.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) it is sent by Wi-Fi
28. 28.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 90 readings take?
29. 29.🔢 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
30. 30.🔢 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
31. 31.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
32. 32.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the sensor measures
33. 33.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
34. 34.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
35. 35.Which of these is an IoT device? (a) a plain wall switch (b) a smart energy meter (c) a battery torch (d) a paper calendar
36. 36.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a pencil sharpener (d) a smart energy meter
38. 38.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) a candle in a jar (d) lights on from an app
39. 39.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
40. 40.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) cloud server (c) phone app (d) sensor

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