Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 829 · 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.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by shouting (d) by post
2. 2.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 190 readings take?
3. 3.What does the cloud server do? (a) measures the real world (b) shows data to you (c) stores data online (d) acts on a command
4. 4.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the app shows it (c) the sensor measures (d) it is sent by Wi-Fi
5. 5.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 180 readings take?
6. 6.What does the phone app do? (a) measures the real world (b) stores data online (c) shows data to you (d) carries the data
7. 7.Which of these is not an IoT device? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) an app-controlled bulb
8. 8.What does the Wi-Fi link do? (a) reads values, decides (b) measures the real world (c) carries the data (d) stores data online
9. 9.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) actuator (c) Wi-Fi (d) phone app
10. 10.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a wind-up clock (d) a Wi-Fi doorbell camera
11. 11.🌐 In an IoT system, which part acts on a command? (a) actuator (b) Wi-Fi (c) cloud server (d) microcontroller
12. 12.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the app shows it (c) the cloud stores it (d) the board reads it
13. 13.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
14. 14.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 5 minutes?
15. 15.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the board reads it (b) the cloud stores it
17. 17.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 5 minutes?
18. 18.What does the microcontroller do? (a) shows data to you (b) acts on a command (c) stores data online (d) reads values, decides
19. 19.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 150 readings take?
20. 20.Which of these is an IoT device? (a) a fitness band with app (b) a wind-up clock (c) a pencil sharpener (d) a plain table fan
21. 21.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) cloud server (c) Wi-Fi (d) sensor
22. 22.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
23. 23.What does the sensor do? (a) shows data to you (b) reads values, decides (c) measures the real world (d) carries the data
24. 24.Which of these is not an IoT device? (a) an app-controlled bulb (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
25. 25.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 160 readings take?
26. 26.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
27. 27.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a smart energy meter (c) a paper calendar (d) a Wi-Fi smart plug
28. 28.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
29. 29.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
30. 30.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🌐 In an IoT system, which part shows data to you? (a) sensor (b) phone app (c) microcontroller (d) actuator
33. 33.🔍 Which is the odd one out? (a) a wind-up clock (b) an app-controlled bulb (c) a plain table fan (d) a paper calendar
34. 34.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a hand fan (d) a candle in a jar
35. 35.Which of these is not an IoT device? (a) an app-controlled bulb (b) a battery torch (c) a Wi-Fi weather station (d) a smart energy meter
36. 36.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
37. 37.What does the actuator do? (a) measures the real world (b) acts on a command (c) carries the data (d) stores data online
38. 38.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
39. 39.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
40. 40.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?

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