Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 211 · 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 of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a fitness band with app (d) a wind-up clock
2. 2.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a battery torch (c) a Wi-Fi weather station (d) a fitness band with app
3. 3.What does the cloud server do? (a) carries the data (b) reads values, decides (c) acts on a command (d) stores data online
4. 4.🔢 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 app shows it (d) the board reads it
5. 5.🌐 In an IoT system, which part shows data to you? (a) actuator (b) phone app (c) microcontroller (d) cloud server
6. 6.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
7. 7.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
8. 8.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
9. 9.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 110 readings take?
10. 10.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) through a candle (c) by post (d) over Wi-Fi
11. 11.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
12. 12.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
13. 13.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) sensor (c) Wi-Fi (d) actuator
14. 14.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
16. 16.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Internet of Things (d) Inside of Toys
17. 17.🔍 Which is the odd one out? (a) a battery torch (b) a plain table fan (c) a smart energy meter (d) a paper calendar
18. 18.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 20 readings take?
19. 19.🔢 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 app shows it (c) the cloud stores it (d) the sensor measures
20. 20.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
21. 21.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the board reads it (b) the sensor measures
22. 22.🔍 Which is the odd one out? (a) a smart energy meter (b) a fitness band with app (c) a plain table fan (d) a Wi-Fi weather station
23. 23.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a Wi-Fi smart plug
24. 24.Which of these is not an IoT device? (a) a fitness band with app (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
25. 25.Which of these is an IoT device? (a) a pencil sharpener (b) a plain table fan (c) a paper calendar (d) a Wi-Fi smart plug
26. 26.🏠 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
27. 27.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
28. 28.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
29. 29.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
30. 30.Which of these is an IoT device? (a) a fitness band with app (b) a plain wall switch (c) a pencil sharpener (d) a plain table fan
31. 31.🔍 Which is the odd one out? (a) a paper calendar (b) a pencil sharpener (c) a battery torch (d) a Wi-Fi smart plug
32. 32.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
33. 33.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
34. 34.What does the phone app do? (a) measures the real world (b) shows data to you (c) reads values, decides (d) stores data online
35. 35.What does the Wi-Fi link do? (a) carries the data (b) shows data to you (c) measures the real world (d) reads values, decides
36. 36.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
37. 37.🌐 In an IoT system, which part measures the real world? (a) actuator (b) microcontroller (c) sensor (d) phone app
38. 38.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi weather station (c) a wind-up clock (d) a Wi-Fi doorbell camera
39. 39.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 9 minutes?
40. 40.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the app shows it (c) the sensor measures (d) the board reads it

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