Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 967 · 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.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) the board reads it (c) the app shows it (d) it is sent by Wi-Fi
2. 2.🔍 Which is the odd one out? (a) a plain wall switch (b) a plain table fan (c) a wind-up clock (d) an app-controlled bulb
3. 3.🏠 Which is a smart-home example? (a) a hand fan (b) a printed map (c) lights on from an app (d) a candle in a jar
4. 4.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a wind-up clock (c) a plain wall switch (d) a pencil sharpener
5. 5.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
6. 6.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
7. 7.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by shouting (d) by post
8. 8.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
9. 9.What does the cloud server do? (a) acts on a command (b) reads values, decides (c) stores data online (d) shows data to you
10. 10.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a fitness band with app
11. 11.What does the microcontroller do? (a) measures the real world (b) carries the data (c) reads values, decides (d) shows data to you
12. 12.Which of these is not an IoT device? (a) an app-controlled bulb (b) a smart energy meter (c) a Wi-Fi smart plug (d) a battery torch
13. 13.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain wall switch (c) a pencil sharpener (d) a battery torch
14. 14.What does the Wi-Fi link do? (a) stores data online (b) acts on a command (c) reads values, decides (d) carries the data
15. 15.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?
17. 17.What does the sensor do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) shows data to you
18. 18.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) sensor (c) microcontroller (d) phone app
19. 19.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 80 readings take?
20. 20.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a pencil sharpener (d) a smart energy meter
21. 21.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) microcontroller (c) actuator (d) phone app
22. 22.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
23. 23.🔍 Which is the odd one out? (a) a paper calendar (b) a plain table fan (c) a Wi-Fi smart plug (d) a battery torch
24. 24.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
25. 25.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
26. 26.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a Wi-Fi weather station
27. 27.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the board reads it
28. 28.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
29. 29.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
30. 30.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
31. 31.🌐 What does IoT stand for? (a) Internet of Things (b) Input of Tools (c) Internet of Talk (d) Inside of Toys
32. 32.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
33. 33.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
34. 34.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) the board reads it (b) it is sent by Wi-Fi
35. 35.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 90 readings take?
36. 36.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
37. 37.🌐 In an IoT system, which part shows data to you? (a) phone app (b) cloud server (c) microcontroller (d) actuator
38. 38.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) Wi-Fi (c) microcontroller (d) sensor
39. 39.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
40. 40.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) the sensor measures

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