Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 115 · 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.🌐 In an IoT system, which part shows data to you? (a) actuator (b) microcontroller (c) sensor (d) phone app
2. 2.🌐 In an IoT system, which part stores data online? (a) sensor (b) actuator (c) cloud server (d) phone app
3. 3.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) it is sent by Wi-Fi (c) the sensor measures (d) the app shows it
4. 4.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
5. 5.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
6. 6.What does the sensor do? (a) acts on a command (b) reads values, decides (c) stores data online (d) measures the real world
7. 7.What does the actuator do? (a) stores data online (b) reads values, decides (c) acts on a command (d) carries the data
8. 8.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 170 readings take?
9. 9.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the app shows it (c) the cloud stores it (d) it is sent by Wi-Fi
10. 10.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a paper calendar (c) a Wi-Fi weather station (d) a smart energy meter
12. 12.What does the Wi-Fi link do? (a) carries the data (b) stores data online (c) acts on a command (d) reads values, decides
13. 13.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) through a candle (c) by shouting (d) over Wi-Fi
14. 14.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the board reads it (b) the cloud stores it
15. 15.🌐 What does IoT stand for? (a) Internet of Things (b) Input of Tools (c) Internet of Talk (d) Inside of Toys
16. 16.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
17. 17.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
18. 18.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a Wi-Fi weather station
19. 19.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
20. 20.What does the phone app do? (a) acts on a command (b) stores data online (c) reads values, decides (d) shows data to you
21. 21.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
22. 22.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi weather station (c) a pencil sharpener (d) a Wi-Fi doorbell camera
23. 23.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a battery torch (d) a Wi-Fi doorbell camera
24. 24.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 5 minutes?
25. 25.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 110 readings take?
26. 26.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a Wi-Fi smart plug
27. 27.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi smart plug (c) a plain wall switch (d) a battery torch
28. 28.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
29. 29.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
30. 30.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
31. 31.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) a hand fan (d) lights on from an app
32. 32.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) cloud server (c) phone app (d) sensor
33. 33.Which of these is an IoT device? (a) a plain wall switch (b) a battery torch (c) a Wi-Fi smart plug (d) a plain table fan
34. 34.Which of these is an IoT device? (a) a plain wall switch (b) a paper calendar (c) a pencil sharpener (d) a Wi-Fi weather station
35. 35.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
36. 36.What does the microcontroller do? (a) acts on a command (b) carries the data (c) reads values, decides (d) shows data to you
37. 37.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 140 readings take?
38. 38.Which of these is an IoT device? (a) a wind-up clock (b) a pencil sharpener (c) an app-controlled bulb (d) a paper calendar
39. 39.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a plain wall switch (c) a wind-up clock (d) a pencil sharpener
40. 40.Which of these is not an IoT device? (a) an app-controlled bulb (b) a smart energy meter (c) a Wi-Fi weather station (d) a paper calendar

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