Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 992 · 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, what comes right after “it is sent by Wi-Fi”? (a) the cloud stores it (b) the sensor measures (c) the board reads it (d) the app shows it
2. 2.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Talk (d) Internet of Things
3. 3.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 60 readings take?
4. 4.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) sensor (c) phone app (d) microcontroller
5. 5.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) microcontroller (c) cloud server (d) sensor
6. 6.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a fitness band with app
9. 9.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
10. 10.🌐 In an IoT system, which part acts on a command? (a) actuator (b) Wi-Fi (c) sensor (d) microcontroller
11. 11.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a pencil sharpener (d) a smart energy meter
12. 12.Which of these is an IoT device? (a) a plain wall switch (b) a paper calendar (c) an app-controlled bulb (d) a battery torch
13. 13.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi weather station (c) a plain table fan (d) a wind-up clock
14. 14.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
15. 15.🔍 Which is the odd one out? (a) a plain wall switch (b) a plain table fan (c) a Wi-Fi weather station (d) a pencil sharpener
16. 16.🔍 Which is the odd one out? (a) a plain wall switch (b) a fitness band with app (c) a pencil sharpener (d) a battery torch
17. 17.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a wind-up clock (d) a fitness band with app
18. 18.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
19. 19.Which of these is an IoT device? (a) a plain table fan (b) a battery torch (c) a fitness band with app (d) a pencil sharpener
20. 20.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
21. 21.🔢 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 cloud stores it (d) the board reads it
22. 22.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by shouting (d) by post
23. 23.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a plain table fan (d) a pencil sharpener
24. 24.🌐 In an IoT system, which part stores data online? (a) actuator (b) phone app (c) Wi-Fi (d) cloud server
25. 25.🔢 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
26. 26.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
27. 27.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 100 readings take?
28. 28.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) a printed map (d) lights on from an app
29. 29.Which of these is an IoT device? (a) a wind-up clock (b) a plain table fan (c) a battery torch (d) a Wi-Fi smart plug
30. 30.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 190 readings take?
31. 31.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 70 readings take?
32. 32.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
33. 33.What does the phone app do? (a) stores data online (b) measures the real world (c) shows data to you (d) reads values, decides
34. 34.What does the microcontroller do? (a) reads values, decides (b) shows data to you (c) acts on a command (d) carries the data
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) it is sent by Wi-Fi (b) the board reads it
36. 36.What does the sensor do? (a) stores data online (b) measures the real world (c) reads values, decides (d) carries the data
37. 37.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
39. 39.🔍 Which is the odd one out? (a) a plain table fan (b) a plain wall switch (c) a Wi-Fi smart plug (d) a pencil sharpener
40. 40.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device

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