Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 98 · 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 measures the real world? (a) Wi-Fi (b) sensor (c) phone app (d) microcontroller
2. 2.🔍 Which is the odd one out? (a) a plain table fan (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a paper calendar
3. 3.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a pencil sharpener (d) an app-controlled bulb
4. 4.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
5. 5.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
6. 6.🌐 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
7. 7.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) a Wi-Fi smart plug (d) a paper calendar
8. 8.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the sensor measures (c) the cloud stores it (d) the app shows it
9. 9.Which of these is an IoT device? (a) a plain wall switch (b) a plain table fan (c) a battery torch (d) a fitness band with app
10. 10.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain wall switch (c) a battery torch (d) a fitness band with app
11. 11.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🌐 In an IoT system, which part carries the data? (a) actuator (b) microcontroller (c) phone app (d) Wi-Fi
13. 13.🏠 Which is a smart-home example? (a) a hand fan (b) a printed map (c) lights on from an app (d) a candle in a jar
14. 14.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
15. 15.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
17. 17.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 20 readings take?
18. 18.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the board reads it (b) the sensor measures (c) the cloud stores it (d) the app shows it
19. 19.What does the phone app do? (a) shows data to you (b) measures the real world (c) carries the data (d) acts on a command
20. 20.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
21. 21.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Internet of Talk (d) Input of Tools
22. 22.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) cloud server (c) sensor (d) phone app
23. 23.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi weather station (c) a pencil sharpener (d) a paper calendar
24. 24.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 110 readings take?
25. 25.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a plain wall switch (c) a pencil sharpener (d) a battery torch
26. 26.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
27. 27.Which of these is not an IoT device? (a) a fitness band with app (b) a paper calendar (c) a Wi-Fi doorbell camera (d) a smart energy meter
28. 28.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
29. 29.What does the Wi-Fi link do? (a) reads values, decides (b) carries the data (c) acts on a command (d) measures the real world
30. 30.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a fitness band with app (d) a plain wall switch
31. 31.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the sensor measures (c) the cloud stores it (d) the app shows it
32. 32.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
33. 33.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a smart energy meter (d) a plain wall switch
34. 34.🌐 In an IoT system, which part acts on a command? (a) phone app (b) actuator (c) Wi-Fi (d) microcontroller
35. 35.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
36. 36.What does the microcontroller do? (a) carries the data (b) acts on a command (c) stores data online (d) reads values, decides
37. 37.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 8 minutes?
38. 38.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
39. 39.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
40. 40.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a battery torch (d) a pencil sharpener

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