Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 765 · 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 25 bytes. How many bytes do 120 readings take?
2. 2.What does the microcontroller do? (a) carries the data (b) measures the real world (c) shows data to you (d) reads values, decides
3. 3.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a candle in a jar (d) a hand fan
4. 4.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
5. 5.Which of these is not an IoT device? (a) a fitness band with app (b) an app-controlled bulb (c) a smart energy meter (d) a pencil sharpener
6. 6.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
7. 7.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
8. 8.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 50 readings take?
9. 9.Which of these is an IoT device? (a) a fitness band with app (b) a plain wall switch (c) a pencil sharpener (d) a wind-up clock
10. 10.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the sensor measures (b) the app shows it
11. 11.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the cloud stores it (b) the app shows it
12. 12.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a fitness band with app (c) a paper calendar (d) a Wi-Fi smart plug
13. 13.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) sensor (c) microcontroller (d) phone app
14. 14.🌐 In an IoT system, which part carries the data? (a) phone app (b) Wi-Fi (c) sensor (d) actuator
15. 15.🔍 Which is the odd one out? (a) a plain wall switch (b) a battery torch (c) a paper calendar (d) a Wi-Fi smart plug
16. 16.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
17. 17.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
18. 18.Which of these is an IoT device? (a) a plain table fan (b) a wind-up clock (c) a battery torch (d) a Wi-Fi weather station
19. 19.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Things (d) Internet of Talk
20. 20.🔢 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 cloud stores it (c) the sensor measures (d) the board reads it
21. 21.🔍 Which is the odd one out? (a) a battery torch (b) a fitness band with app (c) a pencil sharpener (d) a plain table fan
22. 22.🌐 In an IoT system, which part measures the real world? (a) phone app (b) Wi-Fi (c) cloud server (d) sensor
23. 23.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
24. 24.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
25. 25.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the sensor measures (b) the board reads it
26. 26.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi smart plug (c) a smart energy meter (d) an app-controlled bulb
27. 27.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
28. 28.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
29. 29.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) through a candle (d) by post
30. 30.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 smart energy meter
31. 31.Which of these is not an IoT device? (a) an app-controlled bulb (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
32. 32.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 180 readings take?
33. 33.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain table fan (c) a plain wall switch (d) a smart energy meter
34. 34.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
35. 35.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
36. 36.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
37. 37.🔢 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
38. 38.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a smart energy meter (c) a wind-up clock (d) a Wi-Fi smart plug
39. 39.🔍 Which is the odd one out? (a) a fitness band with app (b) a pencil sharpener (c) a Wi-Fi weather station (d) a smart energy meter
40. 40.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) it is sent by Wi-Fi (c) the app shows it (d) the cloud stores it

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