Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 94 · 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.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a hand fan (d) a printed map
2. 2.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a pencil sharpener (c) a battery torch (d) a plain table fan
3. 3.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) a pencil sharpener (d) a Wi-Fi doorbell camera
4. 4.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a wind-up clock
5. 5.🔢 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
6. 6.Which of these is an IoT device? (a) a paper calendar (b) a wind-up clock (c) a battery torch (d) a smart energy meter
7. 7.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
8. 8.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
9. 9.🔍 Which is the odd one out? (a) a paper calendar (b) an app-controlled bulb (c) a battery torch (d) a plain wall switch
10. 10.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the board reads it (b) the sensor measures
11. 11.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the board reads it (b) the sensor measures
12. 12.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a paper calendar
13. 13.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
14. 14.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 160 readings take?
15. 15.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
17. 17.What does the actuator do? (a) reads values, decides (b) measures the real world (c) acts on a command (d) carries the data
18. 18.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
19. 19.🌐 In an IoT system, which part measures the real world? (a) sensor (b) phone app (c) microcontroller (d) actuator
20. 20.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
21. 21.What does the cloud server do? (a) measures the real world (b) acts on a command (c) shows data to you (d) stores data online
22. 22.What does the phone app do? (a) stores data online (b) measures the real world (c) shows data to you (d) carries the data
23. 23.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) the app shows it (b) it is sent by Wi-Fi
24. 24.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) actuator (c) microcontroller (d) Wi-Fi
25. 25.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
26. 26.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Inside of Toys (d) Input of Tools
27. 27.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the sensor measures (b) the cloud stores it
28. 28.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
29. 29.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the cloud stores it”? (a) the cloud stores it (b) the app shows it
30. 30.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a fitness band with app (d) a smart energy meter
31. 31.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a plain wall switch (d) an app-controlled bulb
32. 32.🌐 In an IoT system, which part carries the data? (a) cloud server (b) microcontroller (c) Wi-Fi (d) sensor
33. 33.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 50 readings take?
34. 34.Which of these is an IoT device? (a) an app-controlled bulb (b) a battery torch (c) a paper calendar (d) a plain table fan
35. 35.What does the microcontroller do? (a) acts on a command (b) shows data to you (c) carries the data (d) reads values, decides
36. 36.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 8 minutes?
37. 37.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
38. 38.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a battery torch (d) an app-controlled bulb
39. 39.Which of these is an IoT device? (a) a plain wall switch (b) a battery torch (c) a fitness band with app (d) a wind-up clock
40. 40.🔢 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

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