Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 521 · 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 50 bytes. How many bytes do 100 readings take?
2. 2.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a wind-up clock (d) a Wi-Fi weather station
3. 3.🌐 In an IoT system, which part shows data to you? (a) phone app (b) cloud server (c) sensor (d) microcontroller
4. 4.🌐 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
5. 5.🌐 In an IoT system, which part acts on a command? (a) actuator (b) cloud server (c) Wi-Fi (d) microcontroller
6. 6.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a fitness band with app (d) a wind-up clock
7. 7.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the cloud stores it (b) the sensor measures
8. 8.🔍 Which is the odd one out? (a) a smart energy meter (b) a battery torch (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
9. 9.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
10. 10.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the board reads it (b) the sensor measures
11. 11.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Talk (d) Internet of Things
12. 12.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a paper calendar (d) a smart energy meter
13. 13.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
14. 14.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a battery torch (d) a fitness band with app
15. 15.Which of these is not an IoT device? (a) a paper calendar (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a fitness band with app
16. 16.🌐 In an IoT system, which part stores data online? (a) actuator (b) phone app (c) cloud server (d) sensor
17. 17.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a pencil sharpener (d) an app-controlled bulb
18. 18.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the app shows it (c) the sensor measures (d) it is sent by Wi-Fi
19. 19.🔢 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
20. 20.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 9 minutes?
21. 21.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
22. 22.Which of these is not an IoT device? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a Wi-Fi smart plug
23. 23.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a plain wall switch
24. 24.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the cloud stores it”? (a) the app shows it (b) the cloud stores it
25. 25.🔍 Which is the odd one out? (a) a fitness band with app (b) a battery torch (c) a pencil sharpener (d) a plain wall switch
26. 26.What does the phone app do? (a) carries the data (b) shows data to you (c) stores data online (d) acts on a command
27. 27.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
28. 28.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
29. 29.What does the cloud server do? (a) acts on a command (b) reads values, decides (c) carries the data (d) stores data online
30. 30.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 30 readings take?
31. 31.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?
32. 32.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a paper calendar (d) a pencil sharpener
33. 33.🔢 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
34. 34.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) an app-controlled bulb (d) a paper calendar
36. 36.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
37. 37.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) a smart energy meter (d) a plain table fan
38. 38.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the board reads it (c) it is sent by Wi-Fi (d) the app shows it
39. 39.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) an app-controlled bulb (d) a plain wall switch
40. 40.🔢 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

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