Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 858 · 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) lights on from an app (b) a hand fan (c) a candle in a jar (d) a printed map
2. 2.Which of these is an IoT device? (a) a plain table fan (b) a paper calendar (c) a smart energy meter (d) a plain wall switch
3. 3.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) a pencil sharpener (d) a Wi-Fi weather station
4. 4.🌐 In an IoT system, which part carries the data? (a) phone app (b) cloud server (c) sensor (d) Wi-Fi
5. 5.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a pencil sharpener (c) a battery torch (d) a plain wall switch
6. 6.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a smart energy meter (d) a plain wall switch
7. 7.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 140 readings take?
9. 9.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
10. 10.🔍 Which is the odd one out? (a) a wind-up clock (b) a battery torch (c) an app-controlled bulb (d) a pencil sharpener
11. 11.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a pencil sharpener (d) a plain table fan
12. 12.🔢 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) the app shows it (d) it is sent by Wi-Fi
13. 13.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) through a candle (c) by post (d) over Wi-Fi
14. 14.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
15. 15.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 180 readings take?
16. 16.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) cloud server (c) phone app (d) microcontroller
18. 18.What does the phone app do? (a) shows data to you (b) carries the data (c) reads values, decides (d) stores data online
19. 19.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a smart energy meter
20. 20.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the board reads it (c) the app shows it (d) the sensor measures
21. 21.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
22. 22.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a plain wall switch (d) a paper calendar
23. 23.What does the actuator do? (a) stores data online (b) reads values, decides (c) acts on a command (d) shows data to you
24. 24.What does the Wi-Fi link do? (a) stores data online (b) measures the real world (c) carries the data (d) shows data to you
25. 25.What does the sensor do? (a) reads values, decides (b) measures the real world (c) shows data to you (d) carries the data
26. 26.🔍 Which is the odd one out? (a) a paper calendar (b) a wind-up clock (c) a pencil sharpener (d) a fitness band with app
27. 27.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
28. 28.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Internet of Talk (d) Inside of Toys
29. 29.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 120 readings take?
30. 30.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
31. 31.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a smart energy meter
32. 32.🔍 Which is the odd one out? (a) a battery torch (b) a paper calendar (c) a wind-up clock (d) a Wi-Fi doorbell camera
33. 33.🌐 In an IoT system, which part measures the real world? (a) sensor (b) phone app (c) actuator (d) Wi-Fi
34. 34.🌐 In an IoT system, which part acts on a command? (a) phone app (b) Wi-Fi (c) actuator (d) sensor
35. 35.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a battery torch
36. 36.Which of these is an IoT device? (a) a pencil sharpener (b) a wind-up clock (c) a plain table fan (d) an app-controlled bulb
37. 37.Which of these is not an IoT device? (a) a battery torch (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) an app-controlled bulb
38. 38.🔢 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
39. 39.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
40. 40.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?

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