Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 265 · 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.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a plain wall switch (d) an app-controlled bulb
2. 2.🌐 What does IoT stand for? (a) Internet of Things (b) Input of Tools (c) Internet of Talk (d) Inside of Toys
3. 3.What does the microcontroller do? (a) reads values, decides (b) stores data online (c) measures the real world (d) acts on a command
4. 4.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
5. 5.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
6. 6.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🔍 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 paper calendar
8. 8.🔢 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
9. 9.Which of these is an IoT device? (a) a battery torch (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a wind-up clock
10. 10.🔢 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
11. 11.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a wind-up clock
12. 12.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 110 readings take?
13. 13.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a plain table fan (d) a fitness band with app
14. 14.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the sensor measures (d) the app shows it
15. 15.🏠 Which is a smart-home example? (a) a hand fan (b) a printed map (c) a candle in a jar (d) lights on from an app
16. 16.🌐 In an IoT system, which part measures the real world? (a) phone app (b) actuator (c) sensor (d) microcontroller
17. 17.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
18. 18.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
19. 19.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
20. 20.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the cloud stores it (b) the board reads it (c) the app shows it (d) the sensor measures
21. 21.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
22. 22.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
23. 23.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a wind-up clock (c) a plain wall switch (d) a paper calendar
24. 24.Which of these is not an IoT device? (a) a smart energy meter (b) a pencil sharpener (c) an app-controlled bulb (d) a Wi-Fi weather station
25. 25.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by post (c) by shouting (d) through a candle
26. 26.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a plain table fan (c) a battery torch (d) a paper calendar
27. 27.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 40 readings take?
28. 28.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the sensor measures (c) the app shows it (d) it is sent by Wi-Fi
29. 29.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
30. 30.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
31. 31.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 20 readings take?
32. 32.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
33. 33.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a wind-up clock (d) a pencil sharpener
34. 34.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 40 readings take?
35. 35.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
36. 36.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 7 minutes?
37. 37.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a paper calendar (d) a smart energy meter
38. 38.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
39. 39.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) the cloud stores it (b) it is sent by Wi-Fi
40. 40.What does the cloud server do? (a) reads values, decides (b) carries the data (c) shows data to you (d) stores data online

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