Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 301 · 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, which is the LAST step? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) it is sent by Wi-Fi
2. 2.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a smart energy meter (d) a Wi-Fi doorbell camera
3. 3.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a wind-up clock (d) a plain table fan
4. 4.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 130 readings take?
5. 5.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a wind-up clock (d) a paper calendar
6. 6.What does the actuator do? (a) acts on a command (b) shows data to you (c) measures the real world (d) reads values, decides
7. 7.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a smart energy meter (d) a battery torch
8. 8.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Inside of Toys (d) Internet of Things
9. 9.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 60 readings take?
10. 10.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) microcontroller (c) phone app (d) sensor
11. 11.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
12. 12.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a smart energy meter (c) a Wi-Fi smart plug (d) a wind-up clock
13. 13.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) cloud server (c) microcontroller (d) phone app
15. 15.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
17. 17.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the board reads it
18. 18.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
19. 19.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) through a candle (c) over Wi-Fi (d) by post
20. 20.🔍 Which is the odd one out? (a) a plain table fan (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a fitness band with app
21. 21.🌐 In an IoT system, which part stores data online? (a) sensor (b) microcontroller (c) cloud server (d) phone app
22. 22.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the cloud stores it (b) the sensor measures
23. 23.🔍 Which is the odd one out? (a) a wind-up clock (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
24. 24.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) the app shows it (c) the cloud stores it (d) it is sent by Wi-Fi
25. 25.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
26. 26.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a Wi-Fi smart plug (d) a pencil sharpener
27. 27.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
28. 28.What does the microcontroller do? (a) carries the data (b) shows data to you (c) reads values, decides (d) acts on a command
29. 29.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 150 readings take?
30. 30.🔍 Which is the odd one out? (a) a smart energy meter (b) a battery torch (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
31. 31.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
32. 32.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a paper calendar
33. 33.🌐 In an IoT system, which part measures the real world? (a) sensor (b) cloud server (c) microcontroller (d) Wi-Fi
34. 34.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
35. 35.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a smart energy meter (d) a battery torch
36. 36.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a Wi-Fi smart plug (d) a fitness band with app
37. 37.🔍 Which is the odd one out? (a) a paper calendar (b) a plain wall switch (c) a Wi-Fi weather station (d) a pencil sharpener
38. 38.Which of these is not an IoT device? (a) an app-controlled bulb (b) a fitness band with app (c) a plain wall switch (d) a smart energy meter
39. 39.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a smart energy meter (c) an app-controlled bulb (d) a paper calendar
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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