Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 947 · 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 comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) the app shows it (b) it is sent by Wi-Fi
2. 2.🌐 In an IoT system, which part shows data to you? (a) phone app (b) actuator (c) sensor (d) microcontroller
3. 3.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a smart energy meter (d) a Wi-Fi weather station
4. 4.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a pencil sharpener (d) a Wi-Fi doorbell camera
5. 5.What does the Wi-Fi link do? (a) measures the real world (b) reads values, decides (c) carries the data (d) stores data online
6. 6.🔍 Which is the odd one out? (a) a battery torch (b) a plain table fan (c) a paper calendar (d) a fitness band with app
7. 7.🔍 Which is the odd one out? (a) a paper calendar (b) a plain wall switch (c) a battery torch (d) an app-controlled bulb
8. 8.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the sensor measures (c) the board reads it (d) it is sent by Wi-Fi
9. 9.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a plain wall switch
10. 10.🔍 Which is the odd one out? (a) a smart energy meter (b) a battery torch (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
11. 11.🌐 In an IoT system, which part stores data online? (a) cloud server (b) Wi-Fi (c) actuator (d) phone app
12. 12.What does the actuator do? (a) acts on a command (b) measures the real world (c) shows data to you (d) reads values, decides
13. 13.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the app shows it (b) the sensor measures
17. 17.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) a hand fan (d) lights on from an app
18. 18.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) phone app (c) cloud server (d) sensor
19. 19.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 70 readings take?
20. 20.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi weather station (c) a smart energy meter (d) a Wi-Fi doorbell camera
21. 21.🌐 In an IoT system, which part acts on a command? (a) actuator (b) microcontroller (c) cloud server (d) Wi-Fi
22. 22.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a plain table fan
23. 23.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
25. 25.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
26. 26.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
27. 27.What does the phone app do? (a) acts on a command (b) measures the real world (c) reads values, decides (d) shows data to you
28. 28.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
29. 29.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) an app-controlled bulb (d) a plain table fan
30. 30.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) actuator (c) sensor (d) phone app
31. 31.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
32. 32.🔍 Which is the odd one out? (a) a smart energy meter (b) a battery torch (c) a wind-up clock (d) a plain table fan
33. 33.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by shouting (c) through a candle (d) by post
34. 34.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
35. 35.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) a pencil sharpener (d) a battery torch
36. 36.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) an app-controlled bulb (d) a wind-up clock
38. 38.What does the cloud server do? (a) carries the data (b) reads values, decides (c) stores data online (d) measures the real world
39. 39.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Internet of Talk (d) Inside of Toys
40. 40.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) the app shows it (b) it is sent by Wi-Fi

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