Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 99 · 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.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) Wi-Fi (c) actuator (d) microcontroller
2. 2.🔍 Which is the odd one out? (a) a paper calendar (b) a battery torch (c) a Wi-Fi weather station (d) a pencil sharpener
3. 3.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
4. 4.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a fitness band with app (d) a plain wall switch
5. 5.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the cloud stores it (c) the app shows it (d) it is sent by Wi-Fi
6. 6.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a pencil sharpener
7. 7.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
8. 8.What does the Wi-Fi link do? (a) acts on a command (b) reads values, decides (c) stores data online (d) carries the data
9. 9.🌐 In an IoT system, which part acts on a command? (a) sensor (b) Wi-Fi (c) microcontroller (d) actuator
10. 10.What does the sensor do? (a) carries the data (b) stores data online (c) measures the real world (d) reads values, decides
11. 11.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a paper calendar (d) an app-controlled bulb
12. 12.Which of these is not an IoT device? (a) an app-controlled bulb (b) a wind-up clock (c) a smart energy meter (d) a Wi-Fi weather station
13. 13.What does the microcontroller do? (a) shows data to you (b) reads values, decides (c) carries the data (d) acts on a command
14. 14.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
15. 15.🔍 Which is the odd one out? (a) a paper calendar (b) an app-controlled bulb (c) a plain table fan (d) a battery torch
16. 16.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) sensor (c) cloud server (d) actuator
17. 17.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
18. 18.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Internet of Things (d) Inside of Toys
19. 19.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) over Wi-Fi (d) through a candle
20. 20.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
21. 21.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?
22. 22.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?
23. 23.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a Wi-Fi weather station (d) a plain table fan
24. 24.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
25. 25.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
26. 26.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a plain table fan (c) a plain wall switch (d) a paper calendar
27. 27.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
28. 28.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi smart plug (c) a plain wall switch (d) a plain table fan
29. 29.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
30. 30.What does the actuator do? (a) acts on a command (b) stores data online (c) carries the data (d) measures the real world
31. 31.🔍 Which is the odd one out? (a) a fitness band with app (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a battery torch
32. 32.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
33. 33.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
34. 34.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a plain wall switch
35. 35.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the cloud stores it (c) the board reads it (d) the app shows it
36. 36.What does the phone app do? (a) carries the data (b) reads values, decides (c) shows data to you (d) measures the real world
37. 37.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
38. 38.🔍 Which is the odd one out? (a) a wind-up clock (b) an app-controlled bulb (c) a fitness band with app (d) a Wi-Fi weather station
39. 39.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
40. 40.Which of these is an IoT device? (a) an app-controlled bulb (b) a pencil sharpener (c) a battery torch (d) a wind-up clock

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