Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 410 · 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.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Internet of Talk (d) Input of Tools
2. 2.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) microcontroller (c) sensor (d) phone app
3. 3.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
4. 4.What does the actuator do? (a) shows data to you (b) reads values, decides (c) measures the real world (d) acts on a command
5. 5.What does the Wi-Fi link do? (a) measures the real world (b) acts on a command (c) stores data online (d) carries the data
6. 6.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a fitness band with app
7. 7.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
8. 8.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) it is sent by Wi-Fi (c) the sensor measures (d) the app shows it
9. 9.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) phone app (c) sensor (d) Wi-Fi
10. 10.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
11. 11.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 9 minutes?
13. 13.🌐 Is a plain wall switch 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 doorbell camera (b) a Wi-Fi weather station (c) a plain wall switch (d) a smart energy meter
15. 15.🔍 Which is the odd one out? (a) a paper calendar (b) a plain wall switch (c) a Wi-Fi smart plug (d) a pencil sharpener
16. 16.Which of these is an IoT device? (a) a plain wall switch (b) an app-controlled bulb (c) a pencil sharpener (d) a battery torch
17. 17.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 100 readings take?
18. 18.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the board reads it (d) the app shows it
19. 19.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a pencil sharpener (d) a fitness band with app
20. 20.What does the phone app do? (a) carries the data (b) shows data to you (c) stores data online (d) acts on a command
21. 21.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
22. 22.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
23. 23.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 10 minutes?
24. 24.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 10 minutes?
25. 25.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
26. 26.🔢 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
27. 27.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a pencil sharpener
28. 28.🏠 Which is a smart-home example? (a) lights on from an app (b) a hand fan (c) a candle in a jar (d) a printed map
29. 29.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?
30. 30.🌐 In an IoT system, which part measures the real world? (a) actuator (b) phone app (c) sensor (d) microcontroller
31. 31.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
32. 32.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
33. 33.Which of these is an IoT device? (a) a plain table fan (b) a paper calendar (c) a Wi-Fi doorbell camera (d) a wind-up clock
34. 34.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) through a candle (d) over Wi-Fi
35. 35.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) sensor (c) actuator (d) Wi-Fi
36. 36.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain wall switch (c) a paper calendar (d) an app-controlled bulb
37. 37.Which of these is not an IoT device? (a) a wind-up clock (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
38. 38.What does the sensor do? (a) measures the real world (b) acts on a command (c) reads values, decides (d) shows data to you
39. 39.What does the cloud server do? (a) reads values, decides (b) measures the real world (c) stores data online (d) shows data to you
40. 40.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device

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