Electronics Worksheet: What Is IoT

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

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