Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 898 · 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 5 seconds. How many readings does it send in 1 minute?
2. 2.What does the phone app do? (a) carries the data (b) stores data online (c) reads values, decides (d) shows data to you
3. 3.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the board reads it (d) the sensor measures
4. 4.🌐 In an IoT system, which part carries the data? (a) phone app (b) actuator (c) Wi-Fi (d) microcontroller
5. 5.Which of these is an IoT device? (a) a paper calendar (b) a smart energy meter (c) a pencil sharpener (d) a plain table fan
6. 6.Which of these is an IoT device? (a) a paper calendar (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a plain wall switch
7. 7.🔍 Which is the odd one out? (a) a plain wall switch (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a smart energy meter
8. 8.🌐 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
9. 9.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
10. 10.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain table fan (c) a plain wall switch (d) a paper calendar
11. 11.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a wind-up clock
12. 12.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
13. 13.What does the cloud server do? (a) measures the real world (b) stores data online (c) shows data to you (d) acts on a command
14. 14.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 110 readings take?
15. 15.What does the actuator do? (a) carries the data (b) measures the real world (c) acts on a command (d) reads values, decides
16. 16.🔍 Which is the odd one out? (a) a plain table fan (b) a paper calendar (c) a pencil sharpener (d) a Wi-Fi doorbell camera
17. 17.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) actuator (c) cloud server (d) microcontroller
18. 18.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 80 readings take?
19. 19.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) Wi-Fi (c) actuator (d) sensor
20. 20.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
21. 21.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
22. 22.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) phone app (c) Wi-Fi (d) cloud server
23. 23.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) actuator (c) cloud server (d) phone app
24. 24.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) a printed map (d) lights on from an app
26. 26.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
27. 27.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
28. 28.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) the cloud stores it (c) the board reads it (d) it is sent by Wi-Fi
29. 29.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the board reads it (c) it is sent by Wi-Fi (d) the cloud stores it
30. 30.What does the microcontroller do? (a) reads values, decides (b) measures the real world (c) acts on a command (d) carries the data
31. 31.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
32. 32.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
33. 33.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a smart energy meter (d) a battery torch
34. 34.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
35. 35.Which of these is not an IoT device? (a) a fitness band with app (b) an app-controlled bulb (c) a plain wall switch (d) a Wi-Fi smart plug
36. 36.🔢 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
37. 37.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Internet of Talk (d) Input of Tools
38. 38.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a pencil sharpener
39. 39.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
40. 40.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?

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