Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 892 · 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 7 minutes?
2. 2.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) cloud server (c) phone app (d) actuator
3. 3.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a battery torch (d) a Wi-Fi weather station
4. 4.🔍 Which is the odd one out? (a) a plain wall switch (b) a fitness band with app (c) a wind-up clock (d) a battery torch
5. 5.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the app shows it (b) the board reads it
6. 6.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the app shows it (c) the cloud stores it (d) the board reads it
7. 7.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by post (c) by shouting (d) through a candle
8. 8.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi weather station (c) a paper calendar (d) a plain table fan
9. 9.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
10. 10.What does the phone app do? (a) measures the real world (b) stores data online (c) carries the data (d) shows data to you
11. 11.What does the cloud server do? (a) stores data online (b) carries the data (c) acts on a command (d) reads values, decides
12. 12.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?
15. 15.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain table fan (c) a fitness band with app (d) a smart energy meter
17. 17.What does the actuator do? (a) carries the data (b) stores data online (c) reads values, decides (d) acts on a command
18. 18.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
19. 19.Which of these is not an IoT device? (a) a paper calendar (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
20. 20.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 70 readings take?
21. 21.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
22. 22.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the cloud stores it (b) the sensor measures
23. 23.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a wind-up clock
26. 26.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
27. 27.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the cloud stores it (d) the app shows it
28. 28.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) Wi-Fi (c) sensor (d) actuator
29. 29.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) actuator (c) sensor (d) cloud server
30. 30.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Input of Tools (d) Internet of Things
31. 31.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain wall switch (c) a Wi-Fi smart plug (d) a smart energy meter
32. 32.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a paper calendar (c) a smart energy meter (d) an app-controlled bulb
33. 33.Which of these is not an IoT device? (a) a fitness band with app (b) an app-controlled bulb (c) a plain table fan (d) a Wi-Fi doorbell camera
34. 34.🔢 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 sensor measures (c) the app shows it (d) the board reads it
35. 35.What does the sensor do? (a) acts on a command (b) measures the real world (c) stores data online (d) shows data to you
36. 36.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
38. 38.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a battery torch (c) a smart energy meter (d) a Wi-Fi doorbell camera
39. 39.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 100 readings take?
40. 40.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi weather station (c) a pencil sharpener (d) a battery torch

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