Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 658 · 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.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain wall switch (c) an app-controlled bulb (d) a Wi-Fi smart plug
2. 2.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a candle in a jar (d) a hand fan
3. 3.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 60 readings take?
4. 4.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) over Wi-Fi (d) by post
5. 5.What does the actuator do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) carries the data
6. 6.🔢 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 app shows it
7. 7.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a battery torch
8. 8.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
9. 9.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) sensor (c) microcontroller (d) phone app
10. 10.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 160 readings take?
11. 11.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
12. 12.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
13. 13.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
14. 14.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
15. 15.What does the cloud server do? (a) acts on a command (b) shows data to you (c) stores data online (d) measures the real world
16. 16.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 5 minutes?
17. 17.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?
18. 18.What does the microcontroller do? (a) carries the data (b) shows data to you (c) acts on a command (d) reads values, decides
19. 19.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
20. 20.🌐 In an IoT system, which part shows data to you? (a) actuator (b) cloud server (c) microcontroller (d) phone app
21. 21.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
22. 22.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a paper calendar
23. 23.🔍 Which is the odd one out? (a) a plain wall switch (b) a plain table fan (c) a pencil sharpener (d) an app-controlled bulb
24. 24.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the sensor measures (b) the app shows it
25. 25.🔍 Which is the odd one out? (a) a battery torch (b) a wind-up clock (c) a fitness band with app (d) a paper calendar
26. 26.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
27. 27.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a smart energy meter (d) a Wi-Fi weather station
28. 28.🌐 In an IoT system, which part stores data online? (a) cloud server (b) sensor (c) Wi-Fi (d) actuator
29. 29.Which of these is an IoT device? (a) a pencil sharpener (b) a plain wall switch (c) a smart energy meter (d) a plain table fan
30. 30.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain wall switch (c) a plain table fan (d) a Wi-Fi weather station
31. 31.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 70 readings take?
32. 32.🔍 Which is the odd one out? (a) a fitness band with app (b) an app-controlled bulb (c) a pencil sharpener (d) a Wi-Fi smart plug
33. 33.🌐 In an IoT system, which part measures the real world? (a) actuator (b) sensor (c) cloud server (d) Wi-Fi
34. 34.What does the Wi-Fi link do? (a) acts on a command (b) measures the real world (c) carries the data (d) stores data online
35. 35.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a plain wall switch
36. 36.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
37. 37.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
38. 38.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
39. 39.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the app shows it (d) the board reads it
40. 40.🔍 Which is the odd one out? (a) a fitness band with app (b) a wind-up clock (c) a smart energy meter (d) a Wi-Fi doorbell camera

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