Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 278 · 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.🔢 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 board reads it (d) the cloud stores it
2. 2.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
3. 3.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the board reads it (d) the sensor measures
4. 4.What does the sensor do? (a) acts on a command (b) shows data to you (c) reads values, decides (d) measures the real world
5. 5.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a fitness band with app (d) a pencil sharpener
6. 6.🌐 In an IoT system, which part shows data to you? (a) phone app (b) cloud server (c) microcontroller (d) Wi-Fi
7. 7.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
8. 8.Which of these is not an IoT device? (a) a wind-up clock (b) a Wi-Fi weather station (c) a fitness band with app (d) a smart energy meter
9. 9.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) cloud server (c) phone app (d) sensor
10. 10.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 130 readings take?
12. 12.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
13. 13.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a battery torch
14. 14.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
15. 15.🏠 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
16. 16.Which of these is an IoT device? (a) a pencil sharpener (b) a battery torch (c) a paper calendar (d) a Wi-Fi doorbell camera
17. 17.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) the board reads it
18. 18.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) microcontroller (c) Wi-Fi (d) sensor
19. 19.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) a smart energy meter (d) a plain wall switch
20. 20.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Internet of Talk (d) Inside of Toys
21. 21.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a plain wall switch
22. 22.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 200 readings take?
23. 23.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
24. 24.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?
25. 25.What does the actuator do? (a) stores data online (b) acts on a command (c) shows data to you (d) reads values, decides
26. 26.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
27. 27.What does the microcontroller do? (a) reads values, decides (b) stores data online (c) acts on a command (d) measures the real world
28. 28.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a battery torch (d) a Wi-Fi weather station
29. 29.Which of these is an IoT device? (a) an app-controlled bulb (b) a pencil sharpener (c) a battery torch (d) a plain wall switch
30. 30.🔢 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
31. 31.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) cloud server (c) actuator (d) sensor
32. 32.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?
33. 33.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
34. 34.🔍 Which is the odd one out? (a) a pencil sharpener (b) a paper calendar (c) an app-controlled bulb (d) a plain table fan
35. 35.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
36. 36.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 100 readings take?
37. 37.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
38. 38.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the board reads it (b) the cloud stores it
40. 40.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?

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