Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 670 · 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.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
2. 2.🌐 In an IoT system, which part shows data to you? (a) actuator (b) sensor (c) microcontroller (d) phone app
3. 3.🔢 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
4. 4.🌐 In an IoT system, which part stores data online? (a) cloud server (b) microcontroller (c) sensor (d) Wi-Fi
5. 5.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
6. 6.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 90 readings take?
7. 7.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) an app-controlled bulb
8. 8.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Inside of Toys (d) Internet of Things
9. 9.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a paper calendar (c) a Wi-Fi smart plug (d) a fitness band with app
10. 10.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
11. 11.🔍 Which is the odd one out? (a) a smart energy meter (b) a pencil sharpener (c) a plain wall switch (d) a battery torch
12. 12.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🔍 Which is the odd one out? (a) a paper calendar (b) a pencil sharpener (c) a plain wall switch (d) an app-controlled bulb
14. 14.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
15. 15.What does the sensor do? (a) shows data to you (b) reads values, decides (c) carries the data (d) measures the real world
16. 16.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
17. 17.🔍 Which is the odd one out? (a) a fitness band with app (b) a wind-up clock (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
18. 18.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
19. 19.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) lights on from an app (d) a candle in a jar
20. 20.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the sensor measures (c) the board reads it (d) the app shows it
21. 21.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) over Wi-Fi (c) through a candle (d) by shouting
22. 22.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
23. 23.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi smart plug (c) a paper calendar (d) a plain wall switch
24. 24.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 90 readings take?
25. 25.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 70 readings take?
26. 26.Which of these is not an IoT device? (a) an app-controlled bulb (b) a fitness band with app (c) a Wi-Fi weather station (d) a pencil sharpener
27. 27.Which of these is not an IoT device? (a) a plain table fan (b) a Wi-Fi smart plug (c) a smart energy meter (d) an app-controlled bulb
28. 28.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
29. 29.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
30. 30.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a fitness band with app (c) a Wi-Fi smart plug (d) a plain table fan
31. 31.What does the Wi-Fi link do? (a) shows data to you (b) stores data online (c) reads values, decides (d) carries the data
32. 32.🌐 In an IoT system, which part measures the real world? (a) phone app (b) actuator (c) sensor (d) cloud server
33. 33.🔢 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
34. 34.Which of these is an IoT device? (a) a plain table fan (b) a smart energy meter (c) a pencil sharpener (d) a paper calendar
35. 35.What does the microcontroller do? (a) shows data to you (b) stores data online (c) measures the real world (d) reads values, decides
36. 36.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the board reads it
37. 37.Which of these is an IoT device? (a) a plain table fan (b) a pencil sharpener (c) a wind-up clock (d) a Wi-Fi smart plug
38. 38.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the board reads it (d) the cloud stores it
39. 39.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) a battery torch (d) an app-controlled bulb
40. 40.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 30 readings take?

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