Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 490 · 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.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Inside of Toys (d) Input of Tools
2. 2.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
3. 3.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a fitness band with app (c) a plain table fan (d) a Wi-Fi smart plug
4. 4.What does the actuator do? (a) stores data online (b) reads values, decides (c) carries the data (d) acts on a command
5. 5.🔍 Which is the odd one out? (a) a smart energy meter (b) a fitness band with app (c) a battery torch (d) a Wi-Fi doorbell camera
6. 6.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 140 readings take?
7. 7.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
8. 8.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 80 readings take?
9. 9.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) phone app (c) sensor (d) cloud server
10. 10.Which of these is an IoT device? (a) a paper calendar (b) a smart energy meter (c) a plain table fan (d) a wind-up clock
11. 11.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) by post (d) through a candle
12. 12.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
13. 13.🔍 Which is the odd one out? (a) a plain table fan (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
14. 14.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
16. 16.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the app shows it (d) the sensor measures
17. 17.What does the microcontroller do? (a) acts on a command (b) stores data online (c) shows data to you (d) reads values, decides
18. 18.What does the sensor do? (a) shows data to you (b) acts on a command (c) reads values, decides (d) measures the real world
19. 19.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
20. 20.What does the Wi-Fi link do? (a) acts on a command (b) shows data to you (c) carries the data (d) stores data online
21. 21.🔍 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
22. 22.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the sensor measures (c) the app shows it (d) the cloud stores it
23. 23.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 200 readings take?
24. 24.Which of these is not an IoT device? (a) an app-controlled bulb (b) a smart energy meter (c) a paper calendar (d) a Wi-Fi weather station
25. 25.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain wall switch (c) a fitness band with app (d) a paper calendar
26. 26.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
27. 27.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
28. 28.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) a fitness band with app (d) a pencil sharpener
29. 29.Which of these is not an IoT device? (a) a battery torch (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
30. 30.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
31. 31.🌐 In an IoT system, which part carries the data? (a) cloud server (b) sensor (c) Wi-Fi (d) microcontroller
32. 32.What does the phone app do? (a) shows data to you (b) stores data online (c) carries the data (d) measures the real world
33. 33.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
34. 34.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
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 table fan (b) a Wi-Fi weather station (c) a pencil sharpener (d) a wind-up clock
37. 37.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 50 readings take?
38. 38.🏠 Which is a smart-home example? (a) lights on from an app (b) a hand fan (c) a candle in a jar (d) a printed map
39. 39.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) it is sent by Wi-Fi (c) the sensor measures (d) the cloud stores it
40. 40.🌐 In an IoT system, which part shows data to you? (a) actuator (b) sensor (c) microcontroller (d) phone app

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