Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 785 · 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.🔍 Which is the odd one out? (a) a fitness band with app (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a plain wall switch
2. 2.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the sensor measures
3. 3.Which of these is an IoT device? (a) a plain table fan (b) an app-controlled bulb (c) a paper calendar (d) a plain wall switch
4. 4.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the cloud stores it (b) the app shows it
5. 5.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) actuator (c) sensor (d) cloud server
6. 6.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) a battery torch (d) a Wi-Fi doorbell camera
7. 7.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 80 readings take?
8. 8.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
9. 9.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
10. 10.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 20 readings take?
11. 11.🌐 In an IoT system, which part measures the real world? (a) phone app (b) cloud server (c) sensor (d) Wi-Fi
12. 12.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a hand fan (d) a candle in a jar
13. 13.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a paper calendar (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
14. 14.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) a battery torch (d) a fitness band with app
15. 15.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 160 readings take?
16. 16.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a Wi-Fi weather station (d) a smart energy meter
17. 17.What does the phone app do? (a) shows data to you (b) stores data online (c) reads values, decides (d) acts on a command
18. 18.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a wind-up clock
19. 19.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a paper calendar (d) a smart energy meter
20. 20.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
21. 21.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the sensor measures (b) the app shows it
22. 22.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
23. 23.🌐 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
24. 24.What does the cloud server do? (a) reads values, decides (b) acts on a command (c) measures the real world (d) stores data online
25. 25.🌐 In an IoT system, which part stores data online? (a) sensor (b) microcontroller (c) actuator (d) cloud server
26. 26.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
27. 27.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) actuator (c) phone app (d) sensor
28. 28.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) a pencil sharpener (d) a smart energy meter
29. 29.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a smart energy meter (d) a battery torch
30. 30.Which of these is an IoT device? (a) a plain wall switch (b) a paper calendar (c) a Wi-Fi doorbell camera (d) a battery torch
31. 31.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
32. 32.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a pencil sharpener (d) a Wi-Fi doorbell camera
33. 33.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
34. 34.🔍 Which is the odd one out? (a) a fitness band with app (b) an app-controlled bulb (c) a pencil sharpener (d) a smart energy meter
35. 35.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the app shows it (c) the sensor measures (d) it is sent by Wi-Fi
36. 36.What does the microcontroller do? (a) stores data online (b) reads values, decides (c) measures the real world (d) acts on a command
37. 37.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 130 readings take?
38. 38.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
39. 39.Which of these is an IoT device? (a) a plain wall switch (b) a battery torch (c) a plain table fan (d) a Wi-Fi weather station
40. 40.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device

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