Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 950 · 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) a paper calendar (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a plain table fan
2. 2.Which of these is not an IoT device? (a) a smart energy meter (b) an app-controlled bulb (c) a paper calendar (d) a fitness band with app
3. 3.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
4. 4.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
5. 5.Which of these is an IoT device? (a) a plain table fan (b) an app-controlled bulb (c) a plain wall switch (d) a paper calendar
6. 6.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
7. 7.🌐 In an IoT system, which part carries the data? (a) phone app (b) Wi-Fi (c) cloud server (d) sensor
8. 8.What does the sensor do? (a) stores data online (b) shows data to you (c) measures the real world (d) reads values, decides
9. 9.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) cloud server (c) phone app (d) microcontroller
10. 10.🔍 Which is the odd one out? (a) a pencil sharpener (b) a fitness band with app (c) a battery torch (d) a plain table fan
11. 11.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Internet of Things (d) Inside of Toys
13. 13.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a hand fan (d) a candle in a jar
14. 14.What does the microcontroller do? (a) stores data online (b) carries the data (c) measures the real world (d) reads values, decides
15. 15.🌐 In an IoT system, which part shows data to you? (a) actuator (b) sensor (c) Wi-Fi (d) phone app
16. 16.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi weather station (c) a plain wall switch (d) a plain table fan
17. 17.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 40 readings take?
18. 18.What does the cloud server do? (a) stores data online (b) acts on a command (c) carries the data (d) measures the real world
19. 19.Which of these is not an IoT device? (a) a battery torch (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a smart energy meter
20. 20.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 160 readings take?
21. 21.🔍 Which is the odd one out? (a) a pencil sharpener (b) an app-controlled bulb (c) a smart energy meter (d) a fitness band with app
22. 22.🔍 Which is the odd one out? (a) a fitness band with app (b) an app-controlled bulb (c) a smart energy meter (d) a paper calendar
23. 23.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the app shows it (b) the sensor measures
24. 24.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 190 readings take?
25. 25.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
26. 26.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
27. 27.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
28. 28.What does the phone app do? (a) carries the data (b) reads values, decides (c) shows data to you (d) measures the real world
29. 29.🔢 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) it is sent by Wi-Fi (d) the app shows it
30. 30.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
31. 31.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a wind-up clock
33. 33.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) cloud server (c) sensor (d) Wi-Fi
34. 34.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 200 readings take?
35. 35.🔢 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
36. 36.🌐 In an IoT system, which part stores data online? (a) actuator (b) cloud server (c) sensor (d) microcontroller
37. 37.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
39. 39.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a plain wall switch
40. 40.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a battery torch

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