Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 919 · 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.🌐 In an IoT system, which part stores data online? (a) phone app (b) microcontroller (c) Wi-Fi (d) cloud server
2. 2.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
3. 3.What does the microcontroller do? (a) shows data to you (b) reads values, decides (c) acts on a command (d) carries the data
4. 4.🔢 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
5. 5.Which of these is not an IoT device? (a) a smart energy meter (b) a wind-up clock (c) a Wi-Fi smart plug (d) an app-controlled bulb
6. 6.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
7. 7.Which of these is not an IoT device? (a) a fitness band with app (b) a smart energy meter (c) a pencil sharpener (d) a Wi-Fi smart plug
8. 8.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) the sensor measures
9. 9.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) by shouting (d) over Wi-Fi
10. 10.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
11. 11.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain table fan (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
12. 12.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) it is sent by Wi-Fi (b) the board reads it
14. 14.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a pencil sharpener (d) a wind-up clock
15. 15.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
16. 16.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
17. 17.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 90 readings take?
18. 18.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 180 readings take?
19. 19.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) Wi-Fi (c) cloud server (d) microcontroller
20. 20.Which of these is an IoT device? (a) a plain table fan (b) a wind-up clock (c) a battery torch (d) an app-controlled bulb
21. 21.🔍 Which is the odd one out? (a) a plain wall switch (b) a smart energy meter (c) a wind-up clock (d) a pencil sharpener
22. 22.🌐 In an IoT system, which part shows data to you? (a) sensor (b) phone app (c) cloud server (d) Wi-Fi
23. 23.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a wind-up clock
24. 24.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
25. 25.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 160 readings take?
26. 26.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Internet of Things (d) Inside of Toys
27. 27.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
28. 28.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a paper calendar
29. 29.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 70 readings take?
30. 30.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) lights on from an app (d) a printed map
31. 31.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) it is sent by Wi-Fi (c) the sensor measures (d) the cloud stores it
32. 32.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 10 minutes?
33. 33.What does the sensor do? (a) stores data online (b) carries the data (c) measures the real world (d) reads values, decides
34. 34.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
35. 35.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) microcontroller (c) Wi-Fi (d) sensor
36. 36.What does the cloud server do? (a) carries the data (b) measures the real world (c) stores data online (d) shows data to you
37. 37.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
38. 38.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a battery torch (d) an app-controlled bulb
39. 39.🔍 Which is the odd one out? (a) a plain table fan (b) a plain wall switch (c) a pencil sharpener (d) a Wi-Fi doorbell camera
40. 40.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device

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