Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 460 · 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 board reads it”? (a) the cloud stores it (b) the sensor measures (c) it is sent by Wi-Fi (d) the app shows it
2. 2.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 170 readings take?
3. 3.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a paper calendar
4. 4.What does the cloud server do? (a) measures the real world (b) shows data to you (c) stores data online (d) acts on a command
5. 5.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
6. 6.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
7. 7.Which of these is an IoT device? (a) a plain wall switch (b) a pencil sharpener (c) a plain table fan (d) a smart energy meter
8. 8.What does the Wi-Fi link do? (a) stores data online (b) measures the real world (c) shows data to you (d) carries the data
9. 9.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🌐 In an IoT system, which part measures the real world? (a) phone app (b) cloud server (c) actuator (d) sensor
11. 11.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
12. 12.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
13. 13.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) phone app (c) microcontroller (d) cloud server
14. 14.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) actuator (c) microcontroller (d) Wi-Fi
15. 15.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
17. 17.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
18. 18.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a paper calendar (c) a fitness band with app (d) an app-controlled bulb
19. 19.🔍 Which is the odd one out? (a) a plain wall switch (b) a plain table fan (c) a fitness band with app (d) a pencil sharpener
20. 20.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a wind-up clock
21. 21.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) a printed map (d) lights on from an app
22. 22.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the board reads it (c) the app shows it (d) the cloud stores it
23. 23.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
24. 24.What does the microcontroller do? (a) acts on a command (b) reads values, decides (c) stores data online (d) carries the data
25. 25.🔢 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
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.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
28. 28.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
29. 29.🌐 In an IoT system, which part shows data to you? (a) sensor (b) actuator (c) Wi-Fi (d) phone app
30. 30.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
31. 31.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 140 readings take?
32. 32.🔢 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 sensor measures (c) the cloud stores it (d) the app shows it
33. 33.What does the actuator do? (a) carries the data (b) stores data online (c) acts on a command (d) measures the real world
34. 34.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a pencil sharpener (c) a smart energy meter (d) a fitness band with app
35. 35.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
36. 36.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) actuator (c) sensor (d) cloud server
37. 37.What does the phone app do? (a) measures the real world (b) acts on a command (c) stores data online (d) shows data to you
38. 38.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
39. 39.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) the cloud stores it (b) it is sent by Wi-Fi
40. 40.🔢 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

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