Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 324 · 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, which is the LAST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the board reads it (d) the cloud stores it
2. 2.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a fitness band with app (d) a plain wall switch
3. 3.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Internet of Talk (d) Inside of Toys
4. 4.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
5. 5.Which of these is an IoT device? (a) a pencil sharpener (b) a plain wall switch (c) a battery torch (d) a Wi-Fi doorbell camera
6. 6.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) it is sent by Wi-Fi
7. 7.What does the microcontroller do? (a) stores data online (b) measures the real world (c) acts on a command (d) reads values, decides
8. 8.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) it is sent by Wi-Fi
9. 9.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a fitness band with app (d) a battery torch
10. 10.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by shouting (d) by post
11. 11.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
12. 12.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a plain table fan (d) a paper calendar
13. 13.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
14. 14.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) microcontroller (c) actuator (d) sensor
15. 15.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 100 readings take?
16. 16.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a smart energy meter (c) a Wi-Fi smart plug (d) a paper calendar
17. 17.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a pencil sharpener (d) a smart energy meter
18. 18.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
19. 19.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
20. 20.Which of these is an IoT device? (a) a wind-up clock (b) a smart energy meter (c) a pencil sharpener (d) a paper calendar
21. 21.🔢 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 app shows it (c) the sensor measures (d) the board reads it
22. 22.What does the actuator do? (a) shows data to you (b) carries the data (c) acts on a command (d) reads values, decides
23. 23.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
24. 24.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
25. 25.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
26. 26.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 180 readings take?
27. 27.🏠 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
28. 28.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) it is sent by Wi-Fi (b) the sensor measures
29. 29.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) phone app (c) sensor (d) Wi-Fi
30. 30.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
31. 31.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a battery torch
32. 32.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
34. 34.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
35. 35.Which of these is an IoT device? (a) a battery torch (b) a plain table fan (c) a paper calendar (d) an app-controlled bulb
36. 36.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) sensor (c) cloud server (d) actuator
37. 37.Which of these is not an IoT device? (a) a smart energy meter (b) an app-controlled bulb (c) a fitness band with app (d) a paper calendar
38. 38.🔍 Which is the odd one out? (a) a wind-up clock (b) a battery torch (c) a plain wall switch (d) a Wi-Fi weather station
39. 39.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 110 readings take?
40. 40.What does the sensor do? (a) stores data online (b) measures the real world (c) acts on a command (d) shows data to you

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