Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 223 · 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 not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a plain wall switch
2. 2.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
3. 3.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) a printed map (d) lights on from an app
4. 4.What does the cloud server do? (a) carries the data (b) shows data to you (c) reads values, decides (d) stores data online
5. 5.🌐 In an IoT system, which part shows data to you? (a) phone app (b) sensor (c) cloud server (d) microcontroller
6. 6.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 40 readings take?
7. 7.What does the sensor do? (a) acts on a command (b) measures the real world (c) reads values, decides (d) shows data to you
8. 8.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
9. 9.What does the Wi-Fi link do? (a) measures the real world (b) stores data online (c) acts on a command (d) carries the data
10. 10.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the sensor measures (c) it is sent by Wi-Fi (d) the cloud stores it
11. 11.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) it is sent by Wi-Fi (c) the app shows it (d) the board reads it
12. 12.What does the microcontroller do? (a) measures the real world (b) acts on a command (c) carries the data (d) reads values, decides
13. 13.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 70 readings take?
14. 14.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
15. 15.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
17. 17.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
18. 18.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by shouting (c) by post (d) through a candle
19. 19.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the sensor measures (b) the cloud stores it
20. 20.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Talk (d) Internet of Things
21. 21.🔍 Which is the odd one out? (a) a plain table fan (b) a battery torch (c) a wind-up clock (d) a Wi-Fi doorbell camera
22. 22.Which of these is not an IoT device? (a) a battery torch (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
23. 23.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
24. 24.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a plain wall switch (c) a fitness band with app (d) a Wi-Fi weather station
25. 25.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
26. 26.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) the sensor measures (c) the cloud stores it (d) it is sent by Wi-Fi
27. 27.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a smart energy meter (d) a plain table fan
28. 28.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a Wi-Fi weather station (d) a fitness band with app
29. 29.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
30. 30.What does the phone app do? (a) shows data to you (b) reads values, decides (c) acts on a command (d) measures the real world
31. 31.What does the actuator do? (a) measures the real world (b) shows data to you (c) acts on a command (d) stores data online
32. 32.🌐 In an IoT system, which part carries the data? (a) phone app (b) microcontroller (c) Wi-Fi (d) cloud server
33. 33.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a pencil sharpener (c) a fitness band with app (d) a Wi-Fi weather station
34. 34.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
36. 36.🔍 Which is the odd one out? (a) a plain wall switch (b) a smart energy meter (c) a paper calendar (d) a battery torch
37. 37.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
38. 38.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
39. 39.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
40. 40.Which of these is an IoT device? (a) a smart energy meter (b) a plain table fan (c) a plain wall switch (d) a battery torch

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