Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 890 · 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 200 readings take?
2. 2.🔍 Which is the odd one out? (a) a fitness band with app (b) an app-controlled bulb (c) a pencil sharpener (d) a Wi-Fi smart plug
3. 3.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a plain wall switch
4. 4.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) lights on from an app (d) a hand fan
5. 5.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
6. 6.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) microcontroller (c) cloud server (d) Wi-Fi
7. 7.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Things (d) Internet of Talk
8. 8.What does the sensor do? (a) shows data to you (b) measures the real world (c) carries the data (d) reads values, decides
9. 9.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a battery torch (c) a plain table fan (d) a plain wall switch
10. 10.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a Wi-Fi weather station
11. 11.🌐 In an IoT system, which part shows data to you? (a) actuator (b) Wi-Fi (c) phone app (d) sensor
12. 12.What does the phone app do? (a) reads values, decides (b) acts on a command (c) measures the real world (d) shows data to you
13. 13.What does the microcontroller do? (a) measures the real world (b) acts on a command (c) reads values, decides (d) shows data to you
14. 14.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by post (c) by shouting (d) through a candle
15. 15.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a pencil sharpener (d) a smart energy meter
16. 16.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the sensor measures (d) the board reads it
17. 17.Which of these is an IoT device? (a) a pencil sharpener (b) a battery torch (c) a Wi-Fi doorbell camera (d) a wind-up clock
18. 18.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 170 readings take?
19. 19.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
20. 20.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
21. 21.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
22. 22.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
23. 23.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) actuator (c) sensor (d) microcontroller
26. 26.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?
27. 27.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 190 readings take?
28. 28.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
29. 29.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) actuator (c) sensor (d) cloud server
30. 30.🔢 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
31. 31.Which of these is an IoT device? (a) a fitness band with app (b) a plain table fan (c) a plain wall switch (d) a battery torch
32. 32.🔍 Which is the odd one out? (a) a plain table fan (b) a wind-up clock (c) a plain wall switch (d) a smart energy meter
33. 33.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the board reads it (b) the sensor measures
34. 34.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
35. 35.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a wind-up clock
36. 36.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the board reads it (d) the app shows it
37. 37.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 80 readings take?
38. 38.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) phone app (c) actuator (d) microcontroller
39. 39.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
40. 40.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a smart energy meter

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