Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 176 · 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 10 bytes. How many bytes do 160 readings take?
2. 2.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the sensor measures (c) the cloud stores it (d) the board reads it
3. 3.Which of these is not an IoT device? (a) a plain table fan (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
4. 4.🌐 In an IoT system, which part stores data online? (a) cloud server (b) sensor (c) phone app (d) microcontroller
5. 5.Which of these is an IoT device? (a) a pencil sharpener (b) a plain table fan (c) an app-controlled bulb (d) a paper calendar
6. 6.🌐 What does IoT stand for? (a) Internet of Things (b) Input of Tools (c) Inside of Toys (d) Internet of Talk
7. 7.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a wind-up clock (c) a pencil sharpener (d) a paper calendar
8. 8.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) an app-controlled bulb
9. 9.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
11. 11.What does the sensor do? (a) reads values, decides (b) measures the real world (c) shows data to you (d) acts on a command
12. 12.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) phone app (c) actuator (d) microcontroller
13. 13.🔍 Which is the odd one out? (a) a battery torch (b) a fitness band with app (c) a smart energy meter (d) a Wi-Fi weather station
14. 14.🌐 In an IoT system, which part acts on a command? (a) phone app (b) microcontroller (c) actuator (d) Wi-Fi
15. 15.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 200 readings take?
17. 17.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the board reads it (c) the sensor measures (d) the app shows it
18. 18.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 130 readings take?
19. 19.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 110 readings take?
20. 20.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) by post (d) over Wi-Fi
21. 21.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
22. 22.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
23. 23.What does the cloud server do? (a) stores data online (b) measures the real world (c) carries the data (d) acts on a command
24. 24.What does the phone app do? (a) reads values, decides (b) stores data online (c) measures the real world (d) shows data to you
25. 25.🌐 Is a paper calendar 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 Wi-Fi weather station (c) an app-controlled bulb (d) a pencil sharpener
27. 27.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) actuator (c) sensor (d) phone app
28. 28.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) the board reads it (b) it is sent by Wi-Fi
29. 29.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a paper calendar (d) a smart energy meter
30. 30.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a plain wall switch (d) a smart energy meter
31. 31.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
32. 32.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 7 minutes?
33. 33.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a battery torch (d) a paper calendar
34. 34.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
35. 35.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the board reads it (d) the app shows it
36. 36.Which of these is not an IoT device? (a) a pencil sharpener (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
37. 37.🏠 Which is a smart-home example? (a) a hand fan (b) lights on from an app (c) a printed map (d) a candle in a jar
38. 38.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
39. 39.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 90 readings take?
40. 40.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?

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