Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 644 · 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.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
2. 2.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the sensor measures (c) the app shows it (d) the board reads it
3. 3.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) microcontroller (c) cloud server (d) phone app
4. 4.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
5. 5.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a paper calendar
6. 6.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
8. 8.Which of these is not an IoT device? (a) a smart energy meter (b) an app-controlled bulb (c) a wind-up clock (d) a Wi-Fi smart plug
9. 9.What does the Wi-Fi link do? (a) carries the data (b) shows data to you (c) reads values, decides (d) measures the real world
10. 10.What does the microcontroller do? (a) shows data to you (b) carries the data (c) reads values, decides (d) acts on a command
11. 11.🔢 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 cloud stores it (c) the sensor measures (d) the app shows it
12. 12.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
14. 14.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) it is sent by Wi-Fi (c) the cloud stores it (d) the app shows it
15. 15.What does the sensor do? (a) stores data online (b) reads values, decides (c) shows data to you (d) measures the real world
16. 16.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Inside of Toys (d) Internet of Things
17. 17.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
18. 18.What does the cloud server do? (a) stores data online (b) measures the real world (c) reads values, decides (d) shows data to you
19. 19.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a smart energy meter
20. 20.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
21. 21.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
22. 22.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) sensor (c) phone app (d) actuator
23. 23.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?
24. 24.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 140 readings take?
25. 25.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the board reads it (c) the cloud stores it (d) the app shows it
26. 26.🔍 Which is the odd one out? (a) a plain table fan (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a wind-up clock
27. 27.🌐 In an IoT system, which part carries the data? (a) sensor (b) Wi-Fi (c) phone app (d) microcontroller
28. 28.🔍 Which is the odd one out? (a) a battery torch (b) a pencil sharpener (c) a wind-up clock (d) a fitness band with app
29. 29.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
30. 30.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
31. 31.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) it is sent by Wi-Fi (b) the board reads it
32. 32.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) the board reads it (b) it is sent by Wi-Fi
33. 33.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
34. 34.What does the actuator do? (a) reads values, decides (b) measures the real world (c) stores data online (d) acts on a command
35. 35.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a hand fan (d) a candle in a jar
36. 36.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a Wi-Fi smart plug
37. 37.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 10 minutes?
38. 38.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 100 readings take?
39. 39.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
40. 40.Which of these is an IoT device? (a) a plain table fan (b) a pencil sharpener (c) a paper calendar (d) a Wi-Fi weather station

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