Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 675 · 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.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) sensor (c) Wi-Fi (d) actuator
2. 2.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the app shows it (b) the board reads it
3. 3.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 5 minutes?
4. 4.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Things (d) Internet of Talk
5. 5.Which of these is an IoT device? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a plain table fan (d) a paper calendar
6. 6.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) microcontroller (c) cloud server (d) sensor
7. 7.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
8. 8.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the sensor measures (c) the app shows it (d) the cloud stores it
9. 9.Which of these is an IoT device? (a) a wind-up clock (b) a plain table fan (c) a battery torch (d) an app-controlled bulb
10. 10.🔍 Which is the odd one out? (a) a paper calendar (b) a battery torch (c) a smart energy meter (d) a plain table fan
11. 11.Which of these is an IoT device? (a) a battery torch (b) a fitness band with app (c) a paper calendar (d) a plain table fan
12. 12.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 70 readings take?
13. 13.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a battery torch (d) a Wi-Fi weather station
14. 14.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) by post (d) over Wi-Fi
15. 15.What does the microcontroller do? (a) carries the data (b) shows data to you (c) reads values, decides (d) measures the real world
16. 16.Which of these is not an IoT device? (a) a plain wall switch (b) a smart energy meter (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
17. 17.What does the sensor do? (a) reads values, decides (b) shows data to you (c) measures the real world (d) acts on a command
18. 18.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
19. 19.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
20. 20.🔍 Which is the odd one out? (a) a paper calendar (b) a fitness band with app (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
21. 21.🔍 Which is the odd one out? (a) a wind-up clock (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
22. 22.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
23. 23.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
24. 24.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
25. 25.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
26. 26.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
27. 27.What does the actuator do? (a) reads values, decides (b) measures the real world (c) stores data online (d) acts on a command
28. 28.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a wind-up clock
29. 29.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
30. 30.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) a printed map (d) lights on from an app
31. 31.Which of these is an IoT device? (a) a pencil sharpener (b) a paper calendar (c) a Wi-Fi weather station (d) a wind-up clock
32. 32.🔍 Which is the odd one out? (a) a plain wall switch (b) a battery torch (c) a plain table fan (d) an app-controlled bulb
33. 33.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
34. 34.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
36. 36.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
37. 37.🔢 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
38. 38.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) microcontroller (c) sensor (d) actuator
39. 39.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device

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