Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 653 · 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.What does the cloud server do? (a) shows data to you (b) stores data online (c) reads values, decides (d) carries the data
2. 2.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
3. 3.What does the phone app do? (a) stores data online (b) carries the data (c) shows data to you (d) acts on a command
4. 4.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
5. 5.🏠 Which is a smart-home example? (a) lights on from an app (b) a hand fan (c) a candle in a jar (d) a printed map
6. 6.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) the cloud stores it (c) the board reads it (d) it is sent by Wi-Fi
7. 7.What does the actuator do? (a) shows data to you (b) reads values, decides (c) carries the data (d) acts on a command
8. 8.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) cloud server (c) microcontroller (d) actuator
9. 9.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a wind-up clock (c) a Wi-Fi smart plug (d) an app-controlled bulb
10. 10.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a pencil sharpener (c) a paper calendar (d) a plain table fan
11. 11.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) it is sent by Wi-Fi (b) the app shows it
12. 12.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a plain wall switch
13. 13.What does the sensor do? (a) stores data online (b) carries the data (c) measures the real world (d) reads values, decides
14. 14.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 170 readings take?
15. 15.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
16. 16.What does the Wi-Fi link do? (a) measures the real world (b) shows data to you (c) carries the data (d) reads values, decides
17. 17.🔍 Which is the odd one out? (a) a battery torch (b) a paper calendar (c) a wind-up clock (d) a smart energy meter
18. 18.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) actuator (c) cloud server (d) Wi-Fi
19. 19.🔢 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 app shows it (c) the cloud stores it (d) the sensor measures
20. 20.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
21. 21.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
22. 22.Which of these is an IoT device? (a) a wind-up clock (b) a plain table fan (c) a plain wall switch (d) an app-controlled bulb
23. 23.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
24. 24.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) actuator (c) microcontroller (d) sensor
25. 25.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a pencil sharpener (c) a battery torch (d) a plain table fan
26. 26.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
27. 27.🔍 Which is the odd one out? (a) a pencil sharpener (b) an app-controlled bulb (c) a smart energy meter (d) a fitness band with app
28. 28.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 5 minutes?
29. 29.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain wall switch (c) a wind-up clock (d) a paper calendar
30. 30.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the app shows it (b) the sensor measures
32. 32.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 8 minutes?
33. 33.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) sensor (c) Wi-Fi (d) actuator
34. 34.Which of these is an IoT device? (a) a smart energy meter (b) a battery torch (c) a wind-up clock (d) a pencil sharpener
35. 35.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 170 readings take?
36. 36.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the board reads it (c) the app shows it (d) it is sent by Wi-Fi
37. 37.Which of these is not an IoT device? (a) a pencil sharpener (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) an app-controlled bulb
38. 38.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 5 minutes?
39. 39.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
40. 40.🌐 In an IoT system, which part carries the data? (a) cloud server (b) sensor (c) microcontroller (d) Wi-Fi

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