Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 121 · 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.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) sensor (c) phone app (d) Wi-Fi
2. 2.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the board reads it (c) the app shows it (d) the cloud stores it
3. 3.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a plain wall switch (c) a pencil sharpener (d) a plain table fan
4. 4.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) lights on from an app (d) a hand fan
5. 5.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) the board reads it (b) it is sent by Wi-Fi
6. 6.🌐 In an IoT system, which part measures the real world? (a) sensor (b) microcontroller (c) Wi-Fi (d) cloud server
7. 7.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by shouting (d) by post
8. 8.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
9. 9.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 7 minutes?
10. 10.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the sensor measures (d) the app shows it
11. 11.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Internet of Things (d) Input of Tools
12. 12.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a paper calendar (d) an app-controlled bulb
13. 13.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
14. 14.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a smart energy meter (d) a plain wall switch
15. 15.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
16. 16.Which of these is an IoT device? (a) a smart energy meter (b) a pencil sharpener (c) a plain wall switch (d) a wind-up clock
17. 17.What does the actuator do? (a) shows data to you (b) measures the real world (c) carries the data (d) acts on a command
18. 18.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the board reads it (b) the sensor measures
19. 19.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the sensor measures (c) the cloud stores it (d) the app shows it
20. 20.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a pencil sharpener
21. 21.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a fitness band with app (d) a Wi-Fi doorbell camera
22. 22.🔍 Which is the odd one out? (a) a battery torch (b) a plain table fan (c) a smart energy meter (d) a wind-up clock
23. 23.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
24. 24.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain table fan (c) a fitness band with app (d) a smart energy meter
25. 25.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
26. 26.Which of these is not an IoT device? (a) a pencil sharpener (b) a fitness band with app (c) a smart energy meter (d) a Wi-Fi doorbell camera
27. 27.🔍 Which is the odd one out? (a) a battery torch (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a smart energy meter
28. 28.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a pencil sharpener
29. 29.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a plain table fan (c) a wind-up clock (d) a battery torch
30. 30.🔍 Which is the odd one out? (a) a plain table fan (b) an app-controlled bulb (c) a pencil sharpener (d) a paper calendar
31. 31.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 180 readings take?
32. 32.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
34. 34.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
35. 35.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
36. 36.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
37. 37.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
39. 39.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
40. 40.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?

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