Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 981 · 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 plain table fan (b) a fitness band with app (c) a Wi-Fi smart plug (d) a smart energy meter
2. 2.What does the microcontroller do? (a) stores data online (b) carries the data (c) shows data to you (d) reads values, decides
3. 3.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
4. 4.What does the cloud server do? (a) stores data online (b) shows data to you (c) acts on a command (d) reads values, decides
5. 5.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi smart plug (c) a wind-up clock (d) a paper calendar
6. 6.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
7. 7.What does the sensor do? (a) reads values, decides (b) measures the real world (c) shows data to you (d) carries the data
8. 8.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
9. 9.🔍 Which is the odd one out? (a) a pencil sharpener (b) a paper calendar (c) a smart energy meter (d) a plain table fan
10. 10.🌐 In an IoT system, which part measures the real world? (a) phone app (b) cloud server (c) Wi-Fi (d) sensor
11. 11.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) Wi-Fi (c) phone app (d) microcontroller
12. 12.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a plain wall switch (c) a battery torch (d) a paper calendar
13. 13.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
14. 14.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Inside of Toys (d) Internet of Things
15. 15.🔍 Which is the odd one out? (a) a paper calendar (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a fitness band with app
16. 16.What does the Wi-Fi link do? (a) carries the data (b) measures the real world (c) acts on a command (d) shows data to you
17. 17.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 10 minutes?
18. 18.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a wind-up clock
19. 19.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain wall switch (c) an app-controlled bulb (d) a battery torch
20. 20.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
21. 21.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a battery torch (c) a plain table fan (d) a plain wall switch
22. 22.Which of these is not an IoT device? (a) a fitness band with app (b) a battery torch (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
23. 23.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the board reads it (c) it is sent by Wi-Fi (d) the sensor measures
24. 24.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi weather station (c) a plain wall switch (d) an app-controlled bulb
25. 25.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 20 readings take?
26. 26.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 150 readings take?
27. 27.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
28. 28.What does the phone app do? (a) measures the real world (b) shows data to you (c) acts on a command (d) carries the data
29. 29.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
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.🔍 Which is the odd one out? (a) a pencil sharpener (b) a paper calendar (c) a Wi-Fi doorbell camera (d) a plain wall switch
32. 32.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
33. 33.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a candle in a jar (d) a hand fan
34. 34.Which of these is an IoT device? (a) a plain table fan (b) a plain wall switch (c) an app-controlled bulb (d) a pencil sharpener
35. 35.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a wind-up clock (c) a pencil sharpener (d) a battery torch
36. 36.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 150 readings take?
37. 37.🔍 Which is the odd one out? (a) a plain wall switch (b) a fitness band with app (c) a battery torch (d) a plain table fan
38. 38.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
39. 39.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
40. 40.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?

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