Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 844 · 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.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 150 readings take?
2. 2.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) the app shows it (c) the board reads it (d) it is sent by Wi-Fi
3. 3.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 110 readings take?
4. 4.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a paper calendar (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
5. 5.🌐 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
6. 6.Which of these is an IoT device? (a) a plain table fan (b) a pencil sharpener (c) a wind-up clock (d) a fitness band with app
7. 7.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) the board reads it
8. 8.What does the Wi-Fi link do? (a) shows data to you (b) measures the real world (c) carries the data (d) stores data online
9. 9.Which of these is an IoT device? (a) a smart energy meter (b) a paper calendar (c) a plain wall switch (d) a wind-up clock
10. 10.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) Wi-Fi (c) microcontroller (d) sensor
11. 11.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a smart energy meter
12. 12.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) a printed map (d) lights on from an app
13. 13.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a fitness band with app
14. 14.Which of these is an IoT device? (a) a plain table fan (b) a battery torch (c) a Wi-Fi weather station (d) a wind-up clock
15. 15.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Talk (d) Internet of Things
16. 16.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 70 readings take?
17. 17.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the sensor measures (b) the app shows it
18. 18.🔢 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 board reads it (d) the cloud stores it
19. 19.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the board reads it (c) the sensor measures (d) the app shows it
20. 20.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
21. 21.What does the cloud server do? (a) carries the data (b) reads values, decides (c) acts on a command (d) stores data online
22. 22.🔍 Which is the odd one out? (a) a smart energy meter (b) an app-controlled bulb (c) a battery torch (d) a Wi-Fi weather station
23. 23.Which of these is not an IoT device? (a) a paper calendar (b) a fitness band with app (c) a smart energy meter (d) a Wi-Fi smart plug
24. 24.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 160 readings take?
25. 25.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) sensor (c) cloud server (d) phone app
26. 26.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) a Wi-Fi smart plug (d) a pencil sharpener
27. 27.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a plain table fan
28. 28.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
29. 29.🌐 In an IoT system, which part shows data to you? (a) actuator (b) sensor (c) microcontroller (d) phone app
30. 30.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
32. 32.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
33. 33.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 130 readings take?
34. 34.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
35. 35.What does the actuator do? (a) shows data to you (b) measures the real world (c) reads values, decides (d) acts on a command
36. 36.What does the sensor do? (a) carries the data (b) acts on a command (c) reads values, decides (d) measures the real world
37. 37.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a plain table fan (d) a wind-up clock
38. 38.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
39. 39.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device

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