Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 495 · 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 battery torch (b) a Wi-Fi weather station (c) a pencil sharpener (d) a plain table fan
2. 2.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
3. 3.Which of these is an IoT device? (a) a fitness band with app (b) a battery torch (c) a plain table fan (d) a plain wall switch
4. 4.What does the sensor do? (a) measures the real world (b) acts on a command (c) reads values, decides (d) carries the data
5. 5.What does the actuator do? (a) measures the real world (b) reads values, decides (c) acts on a command (d) carries the data
6. 6.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
7. 7.🌐 Is a Wi-Fi doorbell camera 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 board reads it”? (a) the app shows it (b) it is sent by Wi-Fi (c) the sensor measures (d) the cloud stores it
9. 9.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the cloud stores it (b) the board reads it
10. 10.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a plain table fan (d) an app-controlled bulb
11. 11.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the cloud stores it (c) the board reads it (d) the app shows it
12. 12.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
13. 13.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a pencil sharpener
14. 14.Which of these is an IoT device? (a) a wind-up clock (b) an app-controlled bulb (c) a paper calendar (d) a pencil sharpener
15. 15.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
16. 16.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🔍 Which is the odd one out? (a) a plain table fan (b) a paper calendar (c) a fitness band with app (d) a wind-up clock
18. 18.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain table fan (c) a wind-up clock (d) a pencil sharpener
19. 19.🏠 Which is a smart-home example? (a) a printed map (b) a candle in a jar (c) a hand fan (d) lights on from an app
20. 20.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) a smart energy meter (d) an app-controlled bulb
21. 21.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the cloud stores it (c) the app shows it (d) the sensor measures
22. 22.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
23. 23.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) microcontroller (c) phone app (d) sensor
24. 24.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
25. 25.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain wall switch (c) a fitness band with app (d) a Wi-Fi smart plug
26. 26.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
27. 27.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a plain wall switch (d) an app-controlled bulb
28. 28.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
29. 29.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) Wi-Fi (c) actuator (d) sensor
30. 30.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 100 readings take?
31. 31.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a battery torch (c) a wind-up clock (d) a pencil sharpener
32. 32.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
33. 33.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
34. 34.What does the microcontroller do? (a) shows data to you (b) reads values, decides (c) carries the data (d) measures the real world
35. 35.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
36. 36.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
37. 37.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
38. 38.🌐 In an IoT system, which part shows data to you? (a) sensor (b) actuator (c) cloud server (d) phone app
39. 39.What does the Wi-Fi link do? (a) shows data to you (b) reads values, decides (c) measures the real world (d) carries the data
40. 40.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device

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