Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 375 · 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 candle in a jar (c) a printed map (d) a hand fan
2. 2.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the app shows it (b) the board reads it
3. 3.🔍 Which is the odd one out? (a) a plain table fan (b) an app-controlled bulb (c) a battery torch (d) a plain wall switch
4. 4.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a fitness band with app (c) a Wi-Fi weather station (d) a pencil sharpener
5. 5.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
6. 6.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
8. 8.What does the actuator do? (a) carries the data (b) acts on a command (c) reads values, decides (d) stores data online
9. 9.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the app shows it (d) the board reads it
10. 10.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) sensor (c) microcontroller (d) phone app
11. 11.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
13. 13.What does the microcontroller do? (a) carries the data (b) acts on a command (c) stores data online (d) reads values, decides
14. 14.🌐 In an IoT system, which part acts on a command? (a) actuator (b) Wi-Fi (c) phone app (d) sensor
15. 15.🌐 In an IoT system, which part carries the data? (a) sensor (b) phone app (c) Wi-Fi (d) microcontroller
16. 16.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a wind-up clock
17. 17.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
18. 18.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) over Wi-Fi (d) by post
19. 19.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) sensor (c) microcontroller (d) phone app
20. 20.What does the phone app do? (a) acts on a command (b) measures the real world (c) shows data to you (d) reads values, decides
21. 21.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
22. 22.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi smart plug (c) a pencil sharpener (d) a plain wall switch
23. 23.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a fitness band with app (d) a plain table fan
24. 24.🔍 Which is the odd one out? (a) a battery torch (b) a paper calendar (c) a plain table fan (d) a smart energy meter
25. 25.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
26. 26.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
27. 27.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the board reads it (d) the app shows it
28. 28.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a battery torch (c) a fitness band with app (d) a Wi-Fi weather station
29. 29.🔍 Which is the odd one out? (a) a fitness band with app (b) a battery torch (c) a wind-up clock (d) a paper calendar
30. 30.Which of these is an IoT device? (a) a plain table fan (b) a pencil sharpener (c) an app-controlled bulb (d) a battery torch
31. 31.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 110 readings take?
32. 32.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
33. 33.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 190 readings take?
34. 34.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 130 readings take?
35. 35.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a plain table fan
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 not an IoT device? (a) a smart energy meter (b) an app-controlled bulb (c) a fitness band with app (d) a plain table fan
38. 38.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
39. 39.What does the sensor do? (a) stores data online (b) shows data to you (c) acts on a command (d) measures the real world
40. 40.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device

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