Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 811 · 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.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
2. 2.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) phone app (c) microcontroller (d) actuator
3. 3.🔍 Which is the odd one out? (a) a wind-up clock (b) a battery torch (c) a plain wall switch (d) a Wi-Fi smart plug
4. 4.🏠 Which is a smart-home example? (a) a hand fan (b) lights on from an app (c) a printed map (d) a candle in a jar
5. 5.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
6. 6.Which of these is not an IoT device? (a) an app-controlled bulb (b) a plain wall switch (c) a smart energy meter (d) a Wi-Fi smart plug
7. 7.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a smart energy meter
8. 8.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
9. 9.🌐 In an IoT system, which part carries the data? (a) actuator (b) cloud server (c) Wi-Fi (d) phone app
10. 10.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
11. 11.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a plain wall switch (c) a fitness band with app (d) a Wi-Fi doorbell camera
12. 12.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
13. 13.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi weather station (c) a paper calendar (d) a fitness band with app
14. 14.🔍 Which is the odd one out? (a) a smart energy meter (b) a wind-up clock (c) a plain wall switch (d) a paper calendar
15. 15.What does the microcontroller do? (a) stores data online (b) carries the data (c) acts on a command (d) reads values, decides
16. 16.What does the phone app do? (a) acts on a command (b) measures the real world (c) stores data online (d) shows data to you
17. 17.🌐 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
18. 18.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
19. 19.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
20. 20.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the app shows it (d) the sensor measures
21. 21.What does the sensor do? (a) measures the real world (b) shows data to you (c) reads values, decides (d) stores data online
22. 22.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
23. 23.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) sensor (c) actuator (d) microcontroller
24. 24.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
26. 26.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) phone app (c) microcontroller (d) cloud server
27. 27.What does the Wi-Fi link do? (a) reads values, decides (b) acts on a command (c) carries the data (d) measures the real world
28. 28.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 7 minutes?
29. 29.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
30. 30.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 40 readings take?
32. 32.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Inside of Toys (d) Internet of Things
33. 33.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 130 readings take?
34. 34.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
35. 35.Which of these is an IoT device? (a) a plain wall switch (b) a wind-up clock (c) a fitness band with app (d) a plain table fan
36. 36.Which of these is not an IoT device? (a) a pencil sharpener (b) an app-controlled bulb (c) a fitness band with app (d) a Wi-Fi weather station
37. 37.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
39. 39.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
40. 40.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi weather station (c) a battery torch (d) a plain wall switch

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