Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 773 · 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 weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
2. 2.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a paper calendar (c) a pencil sharpener (d) a wind-up clock
3. 3.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) the board reads it
4. 4.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
5. 5.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) a candle in a jar (d) lights on from an app
6. 6.🔢 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
7. 7.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
9. 9.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) sensor (c) actuator (d) cloud server
10. 10.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Input of Tools (d) Internet of Talk
11. 11.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by shouting (d) by post
12. 12.What does the cloud server do? (a) measures the real world (b) stores data online (c) carries the data (d) reads values, decides
13. 13.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
14. 14.🌐 In an IoT system, which part shows data to you? (a) sensor (b) Wi-Fi (c) phone app (d) microcontroller
15. 15.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
16. 16.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) the board reads it (c) the cloud stores it (d) it is sent by Wi-Fi
17. 17.What does the actuator do? (a) reads values, decides (b) shows data to you (c) acts on a command (d) measures the real world
18. 18.Which of these is an IoT device? (a) a plain wall switch (b) a battery torch (c) a paper calendar (d) an app-controlled bulb
19. 19.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
20. 20.🌐 In an IoT system, which part carries the data? (a) actuator (b) phone app (c) sensor (d) Wi-Fi
21. 21.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
22. 22.🌐 In an IoT system, which part measures the real world? (a) sensor (b) Wi-Fi (c) phone app (d) actuator
23. 23.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a smart energy meter (d) a wind-up clock
24. 24.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
25. 25.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
26. 26.What does the microcontroller do? (a) stores data online (b) shows data to you (c) reads values, decides (d) measures the real world
27. 27.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
28. 28.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
29. 29.What does the sensor do? (a) reads values, decides (b) measures the real world (c) acts on a command (d) carries the data
30. 30.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
31. 31.Which of these is not an IoT device? (a) an app-controlled bulb (b) a plain table fan (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
32. 32.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) Wi-Fi (c) phone app (d) actuator
33. 33.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the app shows it (b) the board reads it
34. 34.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 paper calendar
35. 35.🔍 Which is the odd one out? (a) a fitness band with app (b) a smart energy meter (c) a Wi-Fi smart plug (d) a paper calendar
36. 36.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain wall switch (c) a Wi-Fi smart plug (d) an app-controlled bulb
37. 37.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
38. 38.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 90 readings take?
39. 39.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a paper calendar (d) a pencil sharpener
40. 40.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?

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