Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 118 · 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 microcontroller do? (a) measures the real world (b) carries the data (c) reads values, decides (d) stores data online
2. 2.🏠 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
3. 3.Which of these is an IoT device? (a) a plain table fan (b) a battery torch (c) a paper calendar (d) a Wi-Fi weather station
4. 4.What does the actuator do? (a) measures the real world (b) reads values, decides (c) acts on a command (d) carries the data
5. 5.Which of these is not an IoT device? (a) an app-controlled bulb (b) a plain wall switch (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
6. 6.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi smart plug (c) a battery torch (d) a plain wall switch
8. 8.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Internet of Talk (d) Inside of Toys
9. 9.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
10. 10.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
11. 11.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 190 readings take?
12. 12.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) phone app (c) microcontroller (d) Wi-Fi
13. 13.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by shouting (c) by post (d) through a candle
14. 14.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the sensor measures (c) the cloud stores it (d) the app shows it
15. 15.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the board reads it (c) the cloud stores it (d) the app shows it
17. 17.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
18. 18.What does the phone app do? (a) reads values, decides (b) acts on a command (c) stores data online (d) shows data to you
19. 19.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) microcontroller (c) sensor (d) cloud server
20. 20.Which of these is an IoT device? (a) a plain table fan (b) a battery torch (c) a wind-up clock (d) a Wi-Fi smart plug
21. 21.Which of these is not an IoT device? (a) an app-controlled bulb (b) a smart energy meter (c) a Wi-Fi weather station (d) a wind-up clock
22. 22.What does the sensor do? (a) stores data online (b) shows data to you (c) acts on a command (d) measures the real world
23. 23.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
24. 24.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
25. 25.Which of these is not an IoT device? (a) a paper calendar (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) an app-controlled bulb
26. 26.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 100 readings take?
27. 27.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a wind-up clock (d) a smart energy meter
28. 28.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a fitness band with app (d) a plain table fan
29. 29.🔍 Which is the odd one out? (a) a fitness band with app (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a plain table fan
30. 30.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
31. 31.🔍 Which is the odd one out? (a) a battery torch (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a fitness band with app
32. 32.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
33. 33.Which of these is an IoT device? (a) a pencil sharpener (b) a wind-up clock (c) an app-controlled bulb (d) a plain wall switch
34. 34.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
35. 35.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) the board reads it (c) the app shows it (d) it is sent by Wi-Fi
36. 36.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
37. 37.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the sensor measures (b) the board reads it
39. 39.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
40. 40.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) phone app (c) actuator (d) cloud server

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