Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 2 · 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.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 10 minutes?
2. 2.🌐 In an IoT system, which part measures the real world? (a) phone app (b) microcontroller (c) cloud server (d) sensor
3. 3.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
4. 4.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
5. 5.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) a candle in a jar (d) lights on from an app
6. 6.Which of these is an IoT device? (a) a wind-up clock (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a plain wall switch
7. 7.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?
8. 8.Which of these is not an IoT device? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a smart energy meter
9. 9.What does the actuator do? (a) carries the data (b) reads values, decides (c) acts on a command (d) shows data to you
10. 10.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the board reads it (b) the app shows it
11. 11.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
12. 12.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) through a candle (d) over Wi-Fi
13. 13.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) it is sent by Wi-Fi (b) the board reads it
16. 16.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain table fan (c) a plain wall switch (d) a pencil sharpener
17. 17.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
18. 18.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a Wi-Fi weather station (d) a fitness band with app
19. 19.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Internet of Talk (d) Input of Tools
20. 20.What does the cloud server do? (a) shows data to you (b) reads values, decides (c) carries the data (d) stores data online
21. 21.Which of these is not an IoT device? (a) a smart energy meter (b) a fitness band with app (c) a Wi-Fi weather station (d) a paper calendar
22. 22.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the sensor measures (c) the board reads it (d) the cloud stores it
23. 23.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 40 readings take?
24. 24.🔍 Which is the odd one out? (a) a battery torch (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a wind-up clock
25. 25.Which of these is an IoT device? (a) an app-controlled bulb (b) a plain table fan (c) a paper calendar (d) a wind-up clock
26. 26.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
27. 27.What does the microcontroller do? (a) acts on a command (b) measures the real world (c) stores data online (d) reads values, decides
28. 28.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
29. 29.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
30. 30.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a wind-up clock (d) an app-controlled bulb
31. 31.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) phone app (c) microcontroller (d) sensor
32. 32.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
33. 33.🌐 In an IoT system, which part acts on a command? (a) phone app (b) actuator (c) cloud server (d) sensor
34. 34.🔍 Which is the odd one out? (a) a plain table fan (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a fitness band with app
35. 35.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
36. 36.What does the Wi-Fi link do? (a) reads values, decides (b) carries the data (c) stores data online (d) acts on a command
37. 37.🔍 Which is the odd one out? (a) a wind-up clock (b) a paper calendar (c) an app-controlled bulb (d) a plain table fan
38. 38.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
39. 39.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
40. 40.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?

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