Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 352 · 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 an IoT device? (a) a wind-up clock (b) a battery torch (c) a smart energy meter (d) a plain wall switch
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 160 readings take?
4. 4.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
5. 5.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
6. 6.🔍 Which is the odd one out? (a) a battery torch (b) a plain wall switch (c) a paper calendar (d) a Wi-Fi smart plug
7. 7.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
8. 8.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
9. 9.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a fitness band with app (c) a battery torch (d) a Wi-Fi smart plug
10. 10.What does the Wi-Fi link do? (a) carries the data (b) acts on a command (c) stores data online (d) reads values, decides
11. 11.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) cloud server (c) Wi-Fi (d) microcontroller
12. 12.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) actuator (c) sensor (d) microcontroller
14. 14.Which of these is not an IoT device? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a Wi-Fi smart plug
15. 15.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a wind-up clock (d) a plain table fan
16. 16.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
17. 17.What does the actuator do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) stores data online
18. 18.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Internet of Things (d) Input of Tools
19. 19.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 60 readings take?
20. 20.What does the cloud server do? (a) reads values, decides (b) stores data online (c) acts on a command (d) measures the real world
21. 21.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) over Wi-Fi (c) by shouting (d) through a candle
22. 22.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
23. 23.🔍 Which is the odd one out? (a) a wind-up clock (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
24. 24.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain table fan (c) a smart energy meter (d) a paper calendar
25. 25.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 180 readings take?
26. 26.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the board reads it (c) the cloud stores it (d) it is sent by Wi-Fi
27. 27.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
28. 28.🏠 Which is a smart-home example? (a) lights on from an app (b) a hand fan (c) a printed map (d) a candle in a jar
29. 29.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
30. 30.What does the sensor do? (a) reads values, decides (b) shows data to you (c) carries the data (d) measures the real world
31. 31.🔢 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
32. 32.🔢 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
33. 33.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?
34. 34.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
35. 35.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a plain table fan (d) a fitness band with app
36. 36.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
37. 37.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the board reads it (c) the cloud stores it (d) the app shows it
38. 38.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) it is sent by Wi-Fi
39. 39.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
40. 40.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 80 readings take?

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