Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 398 · 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.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
2. 2.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
3. 3.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
4. 4.What does the microcontroller do? (a) carries the data (b) acts on a command (c) reads values, decides (d) measures the real world
5. 5.What does the sensor do? (a) acts on a command (b) measures the real world (c) stores data online (d) carries the data
6. 6.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 110 readings take?
7. 7.Which of these is an IoT device? (a) a plain wall switch (b) a pencil sharpener (c) a fitness band with app (d) a wind-up clock
8. 8.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi weather station (c) a pencil sharpener (d) a Wi-Fi smart plug
9. 9.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Internet of Talk (d) Input of Tools
10. 10.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the app shows it (d) the board reads it
11. 11.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) actuator (c) sensor (d) microcontroller
12. 12.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a hand fan (d) a printed map
13. 13.🌐 In an IoT system, which part carries the data? (a) phone app (b) sensor (c) microcontroller (d) Wi-Fi
14. 14.Which of these is an IoT device? (a) a pencil sharpener (b) a paper calendar (c) a wind-up clock (d) a Wi-Fi smart plug
15. 15.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
16. 16.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a paper calendar
17. 17.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
18. 18.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi weather station (c) a wind-up clock (d) a Wi-Fi smart plug
19. 19.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) the board reads it (b) it is sent by Wi-Fi
20. 20.What does the Wi-Fi link do? (a) shows data to you (b) reads values, decides (c) carries the data (d) acts on a command
21. 21.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the app shows it (c) the board reads it (d) the sensor measures
22. 22.🌐 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
23. 23.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
24. 24.What does the cloud server do? (a) reads values, decides (b) measures the real world (c) stores data online (d) carries the data
25. 25.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
26. 26.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a battery torch (d) an app-controlled bulb
27. 27.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 7 minutes?
28. 28.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
29. 29.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?
30. 30.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the board reads it (c) the app shows it (d) it is sent by Wi-Fi
32. 32.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
33. 33.🔍 Which is the odd one out? (a) a wind-up clock (b) a paper calendar (c) a smart energy meter (d) a battery torch
34. 34.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the cloud stores it (b) the app shows it
35. 35.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
36. 36.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
37. 37.Which of these is not an IoT device? (a) a fitness band with app (b) a wind-up clock (c) a Wi-Fi smart plug (d) a smart energy meter
38. 38.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🌐 In an IoT system, which part shows data to you? (a) phone app (b) microcontroller (c) Wi-Fi (d) sensor
40. 40.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a battery torch (c) a Wi-Fi doorbell camera (d) an app-controlled bulb

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