Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 993 · 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) over Wi-Fi (b) by shouting (c) by post (d) through a candle
2. 2.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 160 readings take?
3. 3.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
4. 4.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the app shows it (b) the board reads it
5. 5.🌐 In an IoT system, which part measures the real world? (a) actuator (b) microcontroller (c) Wi-Fi (d) sensor
6. 6.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🔍 Which is the odd one out? (a) a wind-up clock (b) a paper calendar (c) a pencil sharpener (d) a Wi-Fi weather station
8. 8.What does the sensor do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) carries the data
9. 9.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 9 minutes?
10. 10.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
11. 11.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) it is sent by Wi-Fi (b) the app shows it
12. 12.What does the phone app do? (a) shows data to you (b) reads values, decides (c) measures the real world (d) stores data online
13. 13.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) microcontroller (c) sensor (d) Wi-Fi
14. 14.🔍 Which is the odd one out? (a) a smart energy meter (b) a fitness band with app (c) an app-controlled bulb (d) a plain table fan
15. 15.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi smart plug (c) a wind-up clock (d) a plain wall switch
16. 16.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a paper calendar (c) a plain table fan (d) a wind-up clock
17. 17.What does the microcontroller do? (a) acts on a command (b) shows data to you (c) stores data online (d) reads values, decides
18. 18.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Inside of Toys (d) Input of Tools
19. 19.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
20. 20.🔍 Which is the odd one out? (a) a plain wall switch (b) a fitness band with app (c) a wind-up clock (d) a plain table fan
21. 21.🌐 In an IoT system, which part shows data to you? (a) actuator (b) phone app (c) cloud server (d) sensor
22. 22.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
23. 23.Which of these is an IoT device? (a) a plain wall switch (b) an app-controlled bulb (c) a plain table fan (d) a wind-up clock
24. 24.🌐 In an IoT system, which part stores data online? (a) phone app (b) cloud server (c) Wi-Fi (d) microcontroller
25. 25.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
26. 26.Which of these is an IoT device? (a) a pencil sharpener (b) a smart energy meter (c) a plain table fan (d) a wind-up clock
27. 27.What does the cloud server do? (a) carries the data (b) shows data to you (c) reads values, decides (d) stores data online
28. 28.What does the Wi-Fi link do? (a) acts on a command (b) measures the real world (c) carries the data (d) stores data online
29. 29.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
30. 30.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
31. 31.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 200 readings take?
32. 32.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
33. 33.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 140 readings take?
34. 34.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 80 readings take?
35. 35.🏠 Which is a smart-home example? (a) lights on from an app (b) a hand fan (c) a candle in a jar (d) a printed map
36. 36.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
37. 37.🔢 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) it is sent by Wi-Fi (d) the board reads it
38. 38.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
39. 39.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain table fan (c) a plain wall switch (d) a Wi-Fi doorbell camera
40. 40.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a paper calendar (c) a Wi-Fi smart plug (d) an app-controlled bulb

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