Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 21 · 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 pencil sharpener (b) a paper calendar (c) a smart energy meter (d) a wind-up clock
2. 2.🌐 In an IoT system, which part shows data to you? (a) actuator (b) cloud server (c) phone app (d) sensor
3. 3.What does the cloud server do? (a) reads values, decides (b) measures the real world (c) acts on a command (d) stores data online
4. 4.🌐 In an IoT system, which part measures the real world? (a) actuator (b) sensor (c) Wi-Fi (d) phone app
5. 5.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a battery torch (c) a smart energy meter (d) a Wi-Fi smart plug
6. 6.What does the sensor do? (a) acts on a command (b) carries the data (c) shows data to you (d) measures the real world
7. 7.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a plain wall switch (c) a pencil sharpener (d) a battery torch
8. 8.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 100 readings take?
9. 9.Which of these is an IoT device? (a) a wind-up clock (b) a Wi-Fi smart plug (c) a battery torch (d) a paper calendar
10. 10.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 180 readings take?
11. 11.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 170 readings take?
13. 13.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) sensor (c) actuator (d) phone app
15. 15.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a plain table fan (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
16. 16.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
18. 18.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the board reads it (c) the sensor measures (d) the app shows it
19. 19.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) by post (d) over Wi-Fi
20. 20.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
21. 21.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
22. 22.🔍 Which is the odd one out? (a) a plain table fan (b) an app-controlled bulb (c) a paper calendar (d) a wind-up clock
23. 23.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a Wi-Fi smart plug
24. 24.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) lights on from an app (d) a hand fan
25. 25.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?
26. 26.🔍 Which is the odd one out? (a) a paper calendar (b) a battery torch (c) a wind-up clock (d) a Wi-Fi smart plug
27. 27.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 20 readings take?
28. 28.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
29. 29.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) an app-controlled bulb (d) a plain wall switch
30. 30.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the app shows it (c) the board reads it (d) it is sent by Wi-Fi
31. 31.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
32. 32.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 90 readings take?
33. 33.Which of these is an IoT device? (a) a paper calendar (b) a wind-up clock (c) a battery torch (d) a fitness band with app
34. 34.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 120 readings take?
35. 35.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?
36. 36.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
37. 37.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain table fan (c) a smart energy meter (d) a Wi-Fi smart plug
38. 38.Which of these is an IoT device? (a) a wind-up clock (b) a smart energy meter (c) a plain table fan (d) a plain wall switch
39. 39.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
40. 40.What does the Wi-Fi link do? (a) measures the real world (b) reads values, decides (c) stores data online (d) carries the data

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