Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 845 · 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 of these is not an IoT device? (a) a plain table fan (b) an app-controlled bulb (c) a fitness band with app (d) a Wi-Fi doorbell camera
2. 2.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
3. 3.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 100 readings take?
4. 4.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
5. 5.What does the Wi-Fi link do? (a) acts on a command (b) carries the data (c) stores data online (d) reads values, decides
6. 6.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a Wi-Fi weather station (d) a plain table fan
7. 7.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
8. 8.🔍 Which is the odd one out? (a) a fitness band with app (b) a battery torch (c) an app-controlled bulb (d) a Wi-Fi smart plug
9. 9.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
10. 10.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the cloud stores it (b) the board reads it
11. 11.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a battery torch (c) a paper calendar (d) a plain table fan
12. 12.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain table fan (c) a paper calendar (d) a battery torch
13. 13.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Internet of Things (d) Input of Tools
14. 14.🏠 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
15. 15.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
18. 18.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
19. 19.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 40 readings take?
20. 20.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) through a candle (c) over Wi-Fi (d) by post
21. 21.Which of these is not an IoT device? (a) an app-controlled bulb (b) a plain wall switch (c) a fitness band with app (d) a smart energy meter
22. 22.🔍 Which is the odd one out? (a) a paper calendar (b) a fitness band with app (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
23. 23.What does the sensor do? (a) carries the data (b) stores data online (c) measures the real world (d) shows data to you
24. 24.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a pencil sharpener (c) a plain wall switch (d) a plain table fan
25. 25.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
26. 26.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) Wi-Fi (c) cloud server (d) sensor
27. 27.What does the phone app do? (a) shows data to you (b) acts on a command (c) reads values, decides (d) measures the real world
28. 28.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a smart energy meter (d) a battery torch
29. 29.Which of these is not an IoT device? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a smart energy meter
30. 30.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 80 readings take?
31. 31.What does the microcontroller do? (a) acts on a command (b) reads values, decides (c) stores data online (d) measures the real world
32. 32.Which of these is an IoT device? (a) a wind-up clock (b) a smart energy meter (c) a plain wall switch (d) a paper calendar
33. 33.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
34. 34.🔍 Which is the odd one out? (a) a wind-up clock (b) a smart energy meter (c) a fitness band with app (d) a Wi-Fi weather station
35. 35.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
36. 36.Which of these is not an IoT device? (a) a fitness band with app (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a wind-up clock
37. 37.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the board reads it (c) the app shows it (d) the sensor measures
38. 38.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) actuator (c) sensor (d) microcontroller
39. 39.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) it is sent by Wi-Fi (b) the cloud stores it
40. 40.🌐 In an IoT system, which part shows data to you? (a) sensor (b) phone app (c) actuator (d) microcontroller

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