Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 563 · 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 wind-up clock (b) a pencil sharpener (c) an app-controlled bulb (d) a plain table fan
2. 2.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
3. 3.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
4. 4.🔍 Which is the odd one out? (a) a smart energy meter (b) a fitness band with app (c) a plain wall switch (d) an app-controlled bulb
5. 5.🔍 Which is the odd one out? (a) a pencil sharpener (b) a wind-up clock (c) a battery torch (d) a smart energy meter
6. 6.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
7. 7.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
8. 8.🔍 Which is the odd one out? (a) a wind-up clock (b) a pencil sharpener (c) an app-controlled bulb (d) a battery torch
9. 9.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 9 minutes?
10. 10.What does the cloud server do? (a) measures the real world (b) stores data online (c) carries the data (d) shows data to you
11. 11.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a fitness band with app (d) a paper calendar
13. 13.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 160 readings take?
14. 14.🏠 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
15. 15.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
16. 16.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
17. 17.🔍 Which is the odd one out? (a) a paper calendar (b) a plain table fan (c) a wind-up clock (d) a Wi-Fi smart plug
18. 18.🔢 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
19. 19.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Input of Tools (d) Internet of Talk
20. 20.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) phone app (c) sensor (d) Wi-Fi
21. 21.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
22. 22.🔢 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
23. 23.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
24. 24.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 190 readings take?
25. 25.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a battery torch
26. 26.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) the sensor measures (c) the app shows it (d) it is sent by Wi-Fi
27. 27.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) the cloud stores it (c) the board reads it (d) it is sent by Wi-Fi
28. 28.Which of these is not an IoT device? (a) a fitness band with app (b) a smart energy meter (c) a wind-up clock (d) a Wi-Fi weather station
29. 29.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a fitness band with app (d) a plain table fan
30. 30.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
31. 31.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
32. 32.🌐 In an IoT system, which part carries the data? (a) sensor (b) cloud server (c) Wi-Fi (d) microcontroller
33. 33.What does the phone app do? (a) carries the data (b) measures the real world (c) reads values, decides (d) shows data to you
34. 34.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) phone app (c) actuator (d) sensor
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the cloud stores it (b) the sensor measures
36. 36.What does the actuator do? (a) carries the data (b) acts on a command (c) reads values, decides (d) shows data to you
37. 37.🔢 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
38. 38.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the sensor measures (c) it is sent by Wi-Fi (d) the app shows it
39. 39.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a wind-up clock
40. 40.What does the Wi-Fi link do? (a) reads values, decides (b) measures the real world (c) carries the data (d) stores data online

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