Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 869 · 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 the odd one out? (a) a Wi-Fi smart plug (b) a plain table fan (c) a smart energy meter (d) a Wi-Fi weather station
2. 2.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) Wi-Fi (c) actuator (d) sensor
3. 3.Which of these is an IoT device? (a) a pencil sharpener (b) a battery torch (c) an app-controlled bulb (d) a wind-up clock
4. 4.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) phone app (c) Wi-Fi (d) sensor
5. 5.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
6. 6.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
7. 7.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
8. 8.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a fitness band with app (d) a plain wall switch
9. 9.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a Wi-Fi smart plug (d) a paper calendar
10. 10.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the sensor measures
11. 11.What does the actuator do? (a) reads values, decides (b) measures the real world (c) shows data to you (d) acts on a command
12. 12.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
13. 13.What does the Wi-Fi link do? (a) carries the data (b) stores data online (c) acts on a command (d) reads values, decides
14. 14.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Input of Tools (d) Internet of Talk
15. 15.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a hand fan (d) a candle in a jar
16. 16.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
18. 18.🔢 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
19. 19.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 80 readings take?
20. 20.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) cloud server (c) actuator (d) sensor
21. 21.🔢 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
22. 22.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 150 readings take?
23. 23.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
24. 24.What does the microcontroller do? (a) reads values, decides (b) measures the real world (c) stores data online (d) carries the data
25. 25.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
26. 26.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
27. 27.🔍 Which is the odd one out? (a) a plain table fan (b) a pencil sharpener (c) a plain wall switch (d) a Wi-Fi smart plug
28. 28.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
29. 29.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
30. 30.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
31. 31.What does the phone app do? (a) shows data to you (b) measures the real world (c) acts on a command (d) stores data online
32. 32.🔍 Which is the odd one out? (a) a pencil sharpener (b) a paper calendar (c) a plain wall switch (d) a Wi-Fi doorbell camera
33. 33.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
34. 34.Which of these is an IoT device? (a) a plain wall switch (b) a pencil sharpener (c) a Wi-Fi weather station (d) a wind-up clock
35. 35.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
36. 36.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
37. 37.Which of these is an IoT device? (a) a plain wall switch (b) a plain table fan (c) a pencil sharpener (d) a fitness band with app
38. 38.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the app shows it (c) it is sent by Wi-Fi (d) the sensor measures
39. 39.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
40. 40.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device

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