Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 638 · 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.What does the phone app do? (a) reads values, decides (b) stores data online (c) measures the real world (d) shows data to you
2. 2.Which of these is not an IoT device? (a) a plain wall switch (b) a smart energy meter (c) a fitness band with app (d) a Wi-Fi weather station
3. 3.Which of these is not an IoT device? (a) a plain table fan (b) a smart energy meter (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
4. 4.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a plain wall switch
5. 5.🔢 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
6. 6.What does the Wi-Fi link do? (a) stores data online (b) reads values, decides (c) carries the data (d) measures the real world
7. 7.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) microcontroller (c) actuator (d) phone app
8. 8.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
9. 9.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
10. 10.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) it is sent by Wi-Fi (c) the sensor measures (d) the cloud stores it
11. 11.Which of these is not an IoT device? (a) an app-controlled bulb (b) a pencil sharpener (c) a fitness band with app (d) a Wi-Fi weather station
12. 12.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) a Wi-Fi smart plug (d) a paper calendar
13. 13.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Talk (d) Internet of Things
14. 14.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
15. 15.Which of these is an IoT device? (a) a plain table fan (b) a plain wall switch (c) a battery torch (d) a Wi-Fi weather station
16. 16.Which of these is an IoT device? (a) a battery torch (b) an app-controlled bulb (c) a plain table fan (d) a pencil sharpener
17. 17.🔢 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
18. 18.What does the microcontroller do? (a) measures the real world (b) reads values, decides (c) stores data online (d) acts on a command
19. 19.🏠 Which is a smart-home example? (a) a hand fan (b) lights on from an app (c) a candle in a jar (d) a printed map
20. 20.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) a wind-up clock (d) a smart energy meter
21. 21.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by post (d) by shouting
22. 22.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
23. 23.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 30 readings take?
24. 24.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
25. 25.What does the cloud server do? (a) shows data to you (b) measures the real world (c) acts on a command (d) stores data online
26. 26.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
27. 27.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
28. 28.Which of these is an IoT device? (a) a plain table fan (b) a fitness band with app (c) a battery torch (d) a wind-up clock
29. 29.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
30. 30.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) the app shows it (b) it is sent by Wi-Fi
31. 31.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 160 readings take?
32. 32.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
33. 33.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
34. 34.🔍 Which is the odd one out? (a) a smart energy meter (b) a battery torch (c) a plain table fan (d) a plain wall switch
35. 35.🔍 Which is the odd one out? (a) a wind-up clock (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a fitness band with app
36. 36.What does the actuator do? (a) shows data to you (b) carries the data (c) measures the real world (d) acts on a command
37. 37.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) Wi-Fi (c) phone app (d) cloud server
38. 38.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
39. 39.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
40. 40.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?

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