Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 508 · 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.🌐 In an IoT system, which part measures the real world? (a) phone app (b) sensor (c) cloud server (d) Wi-Fi
2. 2.🔍 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 battery torch
3. 3.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the cloud stores it”? (a) the cloud stores it (b) the app shows it
4. 4.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Internet of Things (d) Input of Tools
5. 5.What does the microcontroller do? (a) shows data to you (b) acts on a command (c) reads values, decides (d) measures the real world
6. 6.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
8. 8.Which of these is an IoT device? (a) a paper calendar (b) a wind-up clock (c) a plain table fan (d) a Wi-Fi doorbell camera
9. 9.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 180 readings take?
10. 10.🌐 In an IoT system, which part carries the data? (a) cloud server (b) Wi-Fi (c) actuator (d) microcontroller
11. 11.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the board reads it (b) the sensor measures (c) the cloud stores it (d) the app shows it
12. 12.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) phone app (c) Wi-Fi (d) sensor
13. 13.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a smart energy meter (c) a pencil sharpener (d) a Wi-Fi smart plug
14. 14.What does the sensor do? (a) measures the real world (b) shows data to you (c) carries the data (d) acts on a command
15. 15.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the board reads it (d) the app shows it
17. 17.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
18. 18.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 7 minutes?
19. 19.Which of these is not an IoT device? (a) a fitness band with app (b) an app-controlled bulb (c) a wind-up clock (d) a Wi-Fi doorbell camera
20. 20.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
21. 21.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) Wi-Fi (c) microcontroller (d) sensor
22. 22.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
23. 23.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
24. 24.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a paper calendar (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
25. 25.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a paper calendar (c) a plain table fan (d) a plain wall switch
26. 26.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a paper calendar (d) a smart energy meter
27. 27.🌐 In an IoT system, which part acts on a command? (a) actuator (b) microcontroller (c) Wi-Fi (d) cloud server
28. 28.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a fitness band with app (c) a plain table fan (d) a smart energy meter
29. 29.🌐 In an IoT system, which part stores data online? (a) cloud server (b) phone app (c) microcontroller (d) Wi-Fi
30. 30.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
31. 31.🔍 Which is the odd one out? (a) a battery torch (b) a paper calendar (c) a plain table fan (d) a smart energy meter
32. 32.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
33. 33.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
34. 34.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) the sensor measures (c) it is sent by Wi-Fi (d) the board reads it
35. 35.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the board reads it (c) the app shows it (d) it is sent by Wi-Fi
36. 36.🔍 Which is the odd one out? (a) a fitness band with app (b) a wind-up clock (c) a pencil sharpener (d) a plain table fan
37. 37.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
38. 38.Which of these is an IoT device? (a) a pencil sharpener (b) an app-controlled bulb (c) a plain table fan (d) a paper calendar
39. 39.Which of these is not an IoT device? (a) a smart energy meter (b) a battery torch (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
40. 40.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?

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