Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 163 · 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 smart energy meter (b) an app-controlled bulb (c) a pencil sharpener (d) a Wi-Fi weather station
2. 2.🔢 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 sensor measures (c) the app shows it (d) the cloud stores it
3. 3.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a plain table fan (c) a battery torch (d) a pencil sharpener
4. 4.🌐 In an IoT system, which part shows data to you? (a) sensor (b) microcontroller (c) Wi-Fi (d) phone app
5. 5.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) a plain table fan (d) an app-controlled bulb
6. 6.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a battery torch
7. 7.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a pencil sharpener
8. 8.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
9. 9.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Inside of Toys (d) Internet of Things
12. 12.🔍 Which is the odd one out? (a) a plain table fan (b) a plain wall switch (c) a battery torch (d) a Wi-Fi doorbell camera
13. 13.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
14. 14.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a smart energy meter (d) a plain table fan
15. 15.What does the microcontroller do? (a) measures the real world (b) reads values, decides (c) acts on a command (d) stores data online
16. 16.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
17. 17.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
18. 18.What does the phone app do? (a) shows data to you (b) measures the real world (c) acts on a command (d) stores data online
19. 19.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
20. 20.🏠 Which is a smart-home example? (a) lights on from an app (b) a hand fan (c) a candle in a jar (d) a printed map
21. 21.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 40 readings take?
22. 22.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the app shows it (d) the sensor measures
23. 23.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi weather station (c) a pencil sharpener (d) a paper calendar
24. 24.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) over Wi-Fi (d) through a candle
25. 25.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the board reads it (c) the app shows it (d) the cloud stores it
26. 26.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
27. 27.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
28. 28.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
29. 29.🌐 In an IoT system, which part stores data online? (a) phone app (b) actuator (c) sensor (d) cloud server
30. 30.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) microcontroller (c) sensor (d) phone app
31. 31.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain table fan (c) a pencil sharpener (d) a wind-up clock
32. 32.What does the Wi-Fi link do? (a) measures the real world (b) carries the data (c) acts on a command (d) stores data online
33. 33.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
34. 34.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
35. 35.Which of these is not an IoT device? (a) a fitness band with app (b) an app-controlled bulb (c) a plain table fan (d) a Wi-Fi doorbell camera
36. 36.What does the sensor do? (a) reads values, decides (b) stores data online (c) carries the data (d) measures the real world
37. 37.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a Wi-Fi smart plug (d) a paper calendar
38. 38.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
39. 39.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
40. 40.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?

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