Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 693 · 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.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
2. 2.What does the actuator do? (a) acts on a command (b) shows data to you (c) carries the data (d) stores data online
3. 3.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the cloud stores it (b) the sensor measures
4. 4.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a plain table fan
5. 5.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
6. 6.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
7. 7.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Inside of Toys (d) Internet of Things
8. 8.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
9. 9.Which of these is an IoT device? (a) a fitness band with app (b) a battery torch (c) a paper calendar (d) a wind-up clock
10. 10.🌐 In an IoT system, which part shows data to you? (a) phone app (b) sensor (c) actuator (d) cloud server
11. 11.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🌐 In an IoT system, which part carries the data? (a) cloud server (b) sensor (c) microcontroller (d) Wi-Fi
13. 13.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) sensor (c) cloud server (d) actuator
14. 14.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the sensor measures (d) the board reads it
16. 16.🌐 In an IoT system, which part measures the real world? (a) actuator (b) cloud server (c) phone app (d) sensor
17. 17.🔍 Which is the odd one out? (a) a fitness band with app (b) a smart energy meter (c) a Wi-Fi weather station (d) a wind-up clock
18. 18.What does the microcontroller do? (a) reads values, decides (b) shows data to you (c) measures the real world (d) stores data online
19. 19.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
20. 20.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) a printed map (d) lights on from an app
21. 21.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
22. 22.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 190 readings take?
23. 23.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) cloud server (c) actuator (d) sensor
24. 24.What does the Wi-Fi link do? (a) measures the real world (b) carries the data (c) reads values, decides (d) acts on a command
25. 25.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
26. 26.Which of these is an IoT device? (a) a pencil sharpener (b) a wind-up clock (c) a plain wall switch (d) a Wi-Fi smart plug
27. 27.What does the sensor do? (a) carries the data (b) acts on a command (c) measures the real world (d) shows data to you
28. 28.Which of these is an IoT device? (a) a paper calendar (b) a wind-up clock (c) a plain wall switch (d) an app-controlled bulb
29. 29.🌐 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
30. 30.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
31. 31.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) it is sent by Wi-Fi (c) the app shows it (d) the sensor measures
32. 32.What does the phone app do? (a) measures the real world (b) shows data to you (c) reads values, decides (d) stores data online
33. 33.🔍 Which is the odd one out? (a) a battery torch (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a smart energy meter
34. 34.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a plain table fan
35. 35.Which of these is not an IoT device? (a) an app-controlled bulb (b) a paper calendar (c) a Wi-Fi weather station (d) a smart energy meter
36. 36.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a smart energy meter (d) a battery torch
37. 37.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
38. 38.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a battery torch
39. 39.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 200 readings take?
40. 40.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a paper calendar (d) a Wi-Fi weather station

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