Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 461 · 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.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the app shows it (b) the board reads it
2. 2.🔍 Which is the odd one out? (a) a battery torch (b) a paper calendar (c) a fitness band with app (d) a pencil sharpener
3. 3.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
4. 4.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the cloud stores it (c) the app shows it (d) the sensor measures
5. 5.What does the sensor do? (a) reads values, decides (b) stores data online (c) shows data to you (d) measures the real world
6. 6.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 180 readings take?
9. 9.🏠 Which is a smart-home example? (a) lights on from an app (b) a candle in a jar (c) a hand fan (d) a printed map
10. 10.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 7 minutes?
11. 11.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 60 readings take?
12. 12.What does the cloud server do? (a) carries the data (b) measures the real world (c) acts on a command (d) stores data online
13. 13.Which of these is an IoT device? (a) an app-controlled bulb (b) a plain table fan (c) a plain wall switch (d) a battery torch
14. 14.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
15. 15.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a fitness band with app (c) a plain wall switch (d) a Wi-Fi doorbell camera
16. 16.🔍 Which is the odd one out? (a) a paper calendar (b) a battery torch (c) a Wi-Fi weather station (d) a plain wall switch
17. 17.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a paper calendar
18. 18.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by post (d) by shouting
19. 19.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the board reads it (b) the app shows it
20. 20.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
21. 21.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a wind-up clock
22. 22.What does the microcontroller do? (a) reads values, decides (b) carries the data (c) stores data online (d) shows data to you
23. 23.What does the Wi-Fi link do? (a) stores data online (b) reads values, decides (c) carries the data (d) measures the real world
24. 24.🌐 In an IoT system, which part stores data online? (a) phone app (b) Wi-Fi (c) cloud server (d) microcontroller
25. 25.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a paper calendar (c) a plain table fan (d) a battery torch
26. 26.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a pencil sharpener (d) a smart energy meter
27. 27.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) a pencil sharpener (d) an app-controlled bulb
28. 28.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Internet of Talk (d) Input of Tools
29. 29.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 110 readings take?
30. 30.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
31. 31.Which of these is not an IoT device? (a) a smart energy meter (b) a wind-up clock (c) a Wi-Fi smart plug (d) an app-controlled bulb
32. 32.🔍 Which is the odd one out? (a) a battery torch (b) a plain wall switch (c) a smart energy meter (d) a wind-up clock
33. 33.🔢 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
34. 34.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a fitness band with app (c) a Wi-Fi smart plug (d) a plain wall switch
35. 35.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
36. 36.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
37. 37.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a fitness band with app (d) a paper calendar
38. 38.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
39. 39.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
40. 40.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) actuator (c) cloud server (d) microcontroller

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