Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 705 · 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.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
2. 2.🌐 In an IoT system, which part stores data online? (a) sensor (b) cloud server (c) actuator (d) microcontroller
3. 3.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a Wi-Fi smart plug
4. 4.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by shouting (c) through a candle (d) by post
5. 5.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Inside of Toys (d) Input of Tools
6. 6.🔍 Which is the odd one out? (a) a plain table fan (b) a battery torch (c) a smart energy meter (d) a pencil sharpener
7. 7.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a fitness band with app (d) a pencil sharpener
8. 8.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
9. 9.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a paper calendar
10. 10.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain wall switch (c) a smart energy meter (d) a Wi-Fi doorbell camera
13. 13.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a paper calendar (d) a Wi-Fi weather station
14. 14.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 60 readings take?
15. 15.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
16. 16.🌐 In an IoT system, which part acts on a command? (a) actuator (b) sensor (c) microcontroller (d) phone app
17. 17.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 90 readings take?
18. 18.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
19. 19.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) a plain table fan (d) a smart energy meter
20. 20.Which of these is an IoT device? (a) a pencil sharpener (b) a battery torch (c) a Wi-Fi smart plug (d) a paper calendar
21. 21.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a wind-up clock
22. 22.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
23. 23.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 190 readings take?
24. 24.🏠 Which is a smart-home example? (a) a hand fan (b) a printed map (c) a candle in a jar (d) lights on from an app
25. 25.Which of these is not an IoT device? (a) an app-controlled bulb (b) a plain wall switch (c) a fitness band with app (d) a smart energy meter
26. 26.What does the microcontroller do? (a) acts on a command (b) stores data online (c) reads values, decides (d) measures the real world
27. 27.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 90 readings take?
28. 28.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
29. 29.Which of these is an IoT device? (a) a plain table fan (b) a wind-up clock (c) an app-controlled bulb (d) a pencil sharpener
30. 30.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
31. 31.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
32. 32.What does the phone app do? (a) carries the data (b) stores data online (c) measures the real world (d) shows data to you
33. 33.What does the sensor do? (a) reads values, decides (b) shows data to you (c) measures the real world (d) stores data online
34. 34.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
35. 35.What does the Wi-Fi link do? (a) shows data to you (b) carries the data (c) stores data online (d) acts on a command
36. 36.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
37. 37.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 180 readings take?
38. 38.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the board reads it (b) the app shows it
39. 39.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
40. 40.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 30 readings take?

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