Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 355 · 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.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 200 readings take?
2. 2.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) sensor (c) actuator (d) Wi-Fi
3. 3.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
4. 4.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
5. 5.What does the Wi-Fi link do? (a) carries the data (b) measures the real world (c) reads values, decides (d) stores data online
6. 6.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 5 minutes?
7. 7.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Input of Tools (d) Inside of Toys
8. 8.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) over Wi-Fi (d) through a candle
9. 9.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 10 minutes?
10. 10.What does the phone app do? (a) stores data online (b) carries the data (c) shows data to you (d) acts on a command
11. 11.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🔢 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 sensor measures (c) the board reads it (d) the cloud stores it
13. 13.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
14. 14.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the sensor measures (c) it is sent by Wi-Fi (d) the app shows it
15. 15.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 80 readings take?
16. 16.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a fitness band with app
17. 17.🔢 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
18. 18.What does the sensor do? (a) reads values, decides (b) measures the real world (c) acts on a command (d) carries the data
19. 19.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
20. 20.Which of these is an IoT device? (a) a battery torch (b) a plain table fan (c) a wind-up clock (d) a Wi-Fi smart plug
21. 21.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the cloud stores it (b) the board reads it
22. 22.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a hand fan (d) a printed map
23. 23.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) an app-controlled bulb
24. 24.Which of these is an IoT device? (a) a plain table fan (b) a paper calendar (c) a fitness band with app (d) a wind-up clock
25. 25.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
26. 26.🌐 In an IoT system, which part acts on a command? (a) actuator (b) microcontroller (c) cloud server (d) sensor
27. 27.🔢 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 sensor measures
28. 28.What does the actuator do? (a) shows data to you (b) carries the data (c) acts on a command (d) reads values, decides
29. 29.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a plain table fan (d) a smart energy meter
30. 30.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
31. 31.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
32. 32.🔍 Which is the odd one out? (a) a plain wall switch (b) a battery torch (c) a smart energy meter (d) a plain table fan
33. 33.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) actuator (c) phone app (d) Wi-Fi
34. 34.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a plain wall switch (c) a Wi-Fi smart plug (d) an app-controlled bulb
35. 35.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi weather station (c) a fitness band with app (d) a smart energy meter
36. 36.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the sensor measures (c) the cloud stores it (d) the app shows it
38. 38.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a battery torch (d) a Wi-Fi doorbell camera
39. 39.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 20 readings take?
40. 40.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?

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