Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 742 · 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.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) it is sent by Wi-Fi
2. 2.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 100 readings take?
3. 3.What does the phone app do? (a) acts on a command (b) shows data to you (c) reads values, decides (d) stores data online
4. 4.🌐 In an IoT system, which part shows data to you? (a) sensor (b) Wi-Fi (c) phone app (d) microcontroller
5. 5.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a fitness band with app (d) a pencil sharpener
6. 6.Which of these is not an IoT device? (a) a plain wall switch (b) a fitness band with app (c) a Wi-Fi weather station (d) a smart energy meter
7. 7.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 90 readings take?
8. 8.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) Wi-Fi (c) cloud server (d) actuator
9. 9.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a hand fan (d) a candle in a jar
10. 10.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
11. 11.Which of these is an IoT device? (a) a pencil sharpener (b) a wind-up clock (c) a battery torch (d) an app-controlled bulb
12. 12.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
13. 13.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi smart plug (c) a plain wall switch (d) a paper calendar
14. 14.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 30 readings take?
15. 15.🔍 Which is the odd one out? (a) a paper calendar (b) a fitness band with app (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
16. 16.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
17. 17.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
18. 18.🌐 In an IoT system, which part measures the real world? (a) sensor (b) actuator (c) microcontroller (d) phone app
19. 19.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
20. 20.What does the actuator do? (a) measures the real world (b) carries the data (c) reads values, decides (d) acts on a command
21. 21.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 140 readings take?
22. 22.What does the microcontroller do? (a) reads values, decides (b) shows data to you (c) acts on a command (d) stores data online
23. 23.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Inside of Toys (d) Input of Tools
24. 24.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a battery torch (d) a Wi-Fi doorbell camera
25. 25.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 130 readings take?
26. 26.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 20 readings take?
27. 27.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
28. 28.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 200 readings take?
29. 29.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
30. 30.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
31. 31.What does the Wi-Fi link do? (a) shows data to you (b) carries the data (c) reads values, decides (d) measures the real world
32. 32.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a smart energy meter (d) a battery torch
33. 33.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
34. 34.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) the app shows it (b) it is sent by Wi-Fi
35. 35.🔍 Which is the odd one out? (a) a battery torch (b) an app-controlled bulb (c) a pencil sharpener (d) a plain wall switch
36. 36.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) it is sent by Wi-Fi (c) the sensor measures (d) the app shows it
38. 38.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) through a candle (d) over Wi-Fi
39. 39.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a wind-up clock (d) a smart energy meter
40. 40.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?

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