Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 61 · 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 smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
2. 2.🔍 Which is the odd one out? (a) a battery torch (b) a paper calendar (c) a wind-up clock (d) a Wi-Fi smart plug
3. 3.🔍 Which is the odd one out? (a) a plain table fan (b) a battery torch (c) a smart energy meter (d) a plain wall switch
4. 4.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) an app-controlled bulb
5. 5.Which of these is an IoT device? (a) a wind-up clock (b) a Wi-Fi weather station (c) a paper calendar (d) a battery torch
6. 6.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the cloud stores it (c) the board reads it (d) the app shows it
7. 7.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a wind-up clock (d) a Wi-Fi doorbell camera
8. 8.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
9. 9.🌐 In an IoT system, which part measures the real world? (a) phone app (b) sensor (c) Wi-Fi (d) cloud server
10. 10.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
11. 11.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a plain wall switch (d) a Wi-Fi weather station
12. 12.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) a pencil sharpener (d) a fitness band with app
13. 13.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 140 readings take?
14. 14.🏠 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
15. 15.What does the microcontroller do? (a) acts on a command (b) carries the data (c) measures the real world (d) reads values, decides
16. 16.🌐 In an IoT system, which part stores data online? (a) sensor (b) Wi-Fi (c) microcontroller (d) cloud server
17. 17.🌐 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
18. 18.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
19. 19.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
20. 20.🔍 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
21. 21.What does the phone app do? (a) carries the data (b) measures the real world (c) shows data to you (d) stores data online
22. 22.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
23. 23.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 30 readings take?
25. 25.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
26. 26.🌐 In an IoT system, which part carries the data? (a) actuator (b) microcontroller (c) phone app (d) Wi-Fi
27. 27.Which of these is an IoT device? (a) a pencil sharpener (b) an app-controlled bulb (c) a battery torch (d) a plain table fan
28. 28.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
29. 29.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi weather station (c) a smart energy meter (d) a plain wall switch
30. 30.What does the Wi-Fi link do? (a) shows data to you (b) acts on a command (c) measures the real world (d) carries the data
31. 31.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a battery torch (c) a Wi-Fi smart plug (d) an app-controlled bulb
32. 32.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
33. 33.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) actuator (c) phone app (d) sensor
34. 34.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
35. 35.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
36. 36.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
37. 37.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 7 minutes?
38. 38.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a pencil sharpener (c) a wind-up clock (d) a plain wall switch
39. 39.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 180 readings take?
40. 40.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a battery torch (d) an app-controlled bulb

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