Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 827 · 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 soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
2. 2.🌐 In an IoT system, which part stores data online? (a) sensor (b) Wi-Fi (c) microcontroller (d) cloud server
3. 3.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
4. 4.Which of these is an IoT device? (a) a plain table fan (b) a battery torch (c) a fitness band with app (d) a pencil sharpener
5. 5.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Internet of Talk (d) Inside of Toys
6. 6.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) it is sent by Wi-Fi (c) the board reads it (d) the sensor measures
7. 7.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
8. 8.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
9. 9.Which of these is an IoT device? (a) an app-controlled bulb (b) a plain table fan (c) a paper calendar (d) a plain wall switch
10. 10.Which of these is an IoT device? (a) a wind-up clock (b) a Wi-Fi weather station (c) a battery torch (d) a plain wall switch
11. 11.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
13. 13.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 30 readings take?
14. 14.🏠 Which is a smart-home example? (a) a printed map (b) a candle in a jar (c) lights on from an app (d) a hand fan
15. 15.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 90 readings take?
17. 17.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the cloud stores it (c) the sensor measures (d) the board reads it
18. 18.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
19. 19.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) microcontroller (c) cloud server (d) actuator
20. 20.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a pencil sharpener (d) a paper calendar
21. 21.🔍 Which is the odd one out? (a) a battery torch (b) a paper calendar (c) a smart energy meter (d) a plain wall switch
22. 22.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
23. 23.What does the phone app do? (a) shows data to you (b) stores data online (c) acts on a command (d) reads values, decides
24. 24.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a paper calendar (d) a pencil sharpener
25. 25.What does the sensor do? (a) carries the data (b) reads values, decides (c) acts on a command (d) measures the real world
26. 26.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
27. 27.🔢 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
28. 28.What does the Wi-Fi link do? (a) stores data online (b) reads values, decides (c) carries the data (d) shows data to you
29. 29.What does the actuator do? (a) stores data online (b) acts on a command (c) reads values, decides (d) carries the data
30. 30.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
31. 31.What does the cloud server do? (a) acts on a command (b) stores data online (c) reads values, decides (d) shows data to you
32. 32.🌐 In an IoT system, which part carries the data? (a) phone app (b) microcontroller (c) Wi-Fi (d) cloud server
33. 33.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) through a candle (c) over Wi-Fi (d) by shouting
34. 34.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the app shows it (c) the board reads it (d) it is sent by Wi-Fi
35. 35.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a plain wall switch
36. 36.🔍 Which is the odd one out? (a) a plain table fan (b) a wind-up clock (c) a battery torch (d) a Wi-Fi smart plug
37. 37.Which of these is an IoT device? (a) a plain table fan (b) a smart energy meter (c) a plain wall switch (d) a wind-up clock
38. 38.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) the sensor measures (b) it is sent by Wi-Fi
39. 39.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the app shows it (b) the sensor measures
40. 40.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 40 readings take?

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