Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 668 · 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 Wi-Fi weather station (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a pencil sharpener
2. 2.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a battery torch (d) a Wi-Fi doorbell camera
3. 3.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) the sensor measures
4. 4.Which of these is an IoT device? (a) a plain wall switch (b) an app-controlled bulb (c) a battery torch (d) a wind-up clock
5. 5.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the board reads it (c) the sensor measures (d) the cloud stores it
6. 6.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) through a candle (c) over Wi-Fi (d) by shouting
7. 7.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
8. 8.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a Wi-Fi weather station
9. 9.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
10. 10.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 100 readings take?
12. 12.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a Wi-Fi smart plug (d) a fitness band with app
13. 13.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) actuator (c) sensor (d) microcontroller
14. 14.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
15. 15.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 150 readings take?
16. 16.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
17. 17.🔍 Which is the odd one out? (a) a pencil sharpener (b) a smart energy meter (c) a plain wall switch (d) a plain table fan
18. 18.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the sensor measures (c) it is sent by Wi-Fi (d) the app shows it
19. 19.Which of these is an IoT device? (a) a pencil sharpener (b) a plain wall switch (c) a Wi-Fi smart plug (d) a battery torch
20. 20.Which of these is not an IoT device? (a) a fitness band with app (b) an app-controlled bulb (c) a pencil sharpener (d) a Wi-Fi smart plug
21. 21.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a fitness band with app (c) a Wi-Fi weather station (d) a plain wall switch
22. 22.🔍 Which is the odd one out? (a) a battery torch (b) a wind-up clock (c) a pencil sharpener (d) a fitness band with app
23. 23.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) cloud server (c) phone app (d) Wi-Fi
24. 24.What does the cloud server do? (a) carries the data (b) measures the real world (c) stores data online (d) reads values, decides
25. 25.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 170 readings take?
26. 26.What does the phone app do? (a) carries the data (b) shows data to you (c) acts on a command (d) measures the real world
27. 27.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi weather station (c) a smart energy meter (d) a fitness band with app
28. 28.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a smart energy meter (c) a fitness band with app (d) a plain wall switch
29. 29.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
30. 30.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 70 readings take?
31. 31.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
33. 33.What does the microcontroller do? (a) stores data online (b) measures the real world (c) carries the data (d) reads values, decides
34. 34.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 30 readings take?
35. 35.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
36. 36.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
37. 37.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
38. 38.Which of these is not an IoT device? (a) a smart energy meter (b) an app-controlled bulb (c) a paper calendar (d) a fitness band with app
39. 39.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
40. 40.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) lights on from an app (d) a printed map

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