Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 307 · 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.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) it is sent by Wi-Fi (c) the app shows it (d) the cloud stores it
2. 2.🌐 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
3. 3.Which of these is an IoT device? (a) a paper calendar (b) a pencil sharpener (c) a plain table fan (d) a Wi-Fi weather station
4. 4.What does the actuator do? (a) acts on a command (b) shows data to you (c) reads values, decides (d) stores data online
5. 5.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
6. 6.What does the sensor do? (a) measures the real world (b) carries the data (c) shows data to you (d) acts on a command
7. 7.🌐 In an IoT system, which part stores data online? (a) phone app (b) microcontroller (c) cloud server (d) sensor
8. 8.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
9. 9.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) a Wi-Fi doorbell camera (d) a battery torch
10. 10.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?
11. 11.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) microcontroller (c) cloud server (d) sensor
12. 12.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) lights on from an app (d) a candle in a jar
13. 13.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
14. 14.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) a wind-up clock (d) an app-controlled bulb
15. 15.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the board reads it
17. 17.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
18. 18.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
19. 19.🌐 In an IoT system, which part acts on a command? (a) sensor (b) microcontroller (c) Wi-Fi (d) actuator
20. 20.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a plain wall switch
21. 21.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the sensor measures (c) the app shows it (d) the board reads it
22. 22.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
23. 23.What does the cloud server do? (a) reads values, decides (b) carries the data (c) shows data to you (d) stores data online
24. 24.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a battery torch (c) a paper calendar (d) a pencil sharpener
25. 25.Which of these is not an IoT device? (a) an app-controlled bulb (b) a smart energy meter (c) a Wi-Fi smart plug (d) a wind-up clock
26. 26.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Internet of Talk (d) Input of Tools
27. 27.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
28. 28.🔢 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 app shows it (d) the sensor measures
29. 29.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
30. 30.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a Wi-Fi weather station (d) a plain wall switch
31. 31.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi weather station (c) a pencil sharpener (d) a battery torch
32. 32.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a fitness band with app (d) a plain table fan
33. 33.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the app shows it (b) the cloud stores it
34. 34.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
35. 35.🌐 In an IoT system, which part measures the real world? (a) phone app (b) sensor (c) microcontroller (d) actuator
36. 36.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 60 readings take?
37. 37.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
38. 38.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a plain table fan (d) a Wi-Fi doorbell camera
39. 39.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a fitness band with app (c) a battery torch (d) a Wi-Fi doorbell camera
40. 40.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?

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