Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 340 · 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.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 120 readings take?
2. 2.Which of these is not an IoT device? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a smart energy meter
3. 3.What does the Wi-Fi link do? (a) carries the data (b) shows data to you (c) acts on a command (d) stores data online
4. 4.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the app shows it (d) the cloud stores it
5. 5.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
6. 6.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
7. 7.Which of these is an IoT device? (a) a fitness band with app (b) a paper calendar (c) a pencil sharpener (d) a battery torch
8. 8.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) microcontroller (c) sensor (d) phone app
9. 9.🔍 Which is the odd one out? (a) a plain table fan (b) a battery torch (c) a Wi-Fi doorbell camera (d) a paper calendar
10. 10.🔍 Which is the odd one out? (a) a fitness band with app (b) an app-controlled bulb (c) a battery torch (d) a Wi-Fi weather station
11. 11.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 7 minutes?
13. 13.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) sensor (c) Wi-Fi (d) cloud server
14. 14.🏠 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
15. 15.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?
16. 16.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
17. 17.Which of these is an IoT device? (a) a wind-up clock (b) a pencil sharpener (c) a plain wall switch (d) a Wi-Fi doorbell camera
18. 18.What does the phone app do? (a) reads values, decides (b) carries the data (c) shows data to you (d) acts on a command
19. 19.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
20. 20.What does the actuator do? (a) measures the real world (b) carries the data (c) stores data online (d) acts on a command
21. 21.What does the microcontroller do? (a) reads values, decides (b) carries the data (c) measures the real world (d) stores data online
22. 22.🌐 In an IoT system, which part acts on a command? (a) actuator (b) phone app (c) cloud server (d) Wi-Fi
23. 23.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a battery torch (c) a pencil sharpener (d) a plain wall switch
24. 24.What does the sensor do? (a) shows data to you (b) measures the real world (c) carries the data (d) acts on a command
25. 25.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a smart energy meter (c) a plain wall switch (d) an app-controlled bulb
26. 26.Which of these is an IoT device? (a) a plain table fan (b) a pencil sharpener (c) an app-controlled bulb (d) a wind-up clock
27. 27.🌐 What does IoT stand for? (a) Internet of Things (b) Input of Tools (c) Inside of Toys (d) Internet of Talk
28. 28.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the cloud stores it (c) the board reads it (d) the sensor measures
29. 29.🔢 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
30. 30.🔍 Which is the odd one out? (a) a pencil sharpener (b) a paper calendar (c) a wind-up clock (d) a Wi-Fi smart plug
31. 31.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) actuator (c) microcontroller (d) sensor
32. 32.Which of these is not an IoT device? (a) a paper calendar (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
33. 33.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
34. 34.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a wind-up clock
35. 35.Which of these is not an IoT device? (a) a plain table fan (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
36. 36.🔍 Which is the odd one out? (a) a pencil sharpener (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
37. 37.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
38. 38.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) it is sent by Wi-Fi (b) the sensor measures
39. 39.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
40. 40.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?

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