Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 75 · 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 plain table fan an IoT device? (a) an IoT device (b) not an IoT device
2. 2.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi weather station (c) a pencil sharpener (d) a battery torch
3. 3.🌐 In an IoT system, which part measures the real world? (a) phone app (b) actuator (c) sensor (d) microcontroller
4. 4.What does the cloud server do? (a) stores data online (b) acts on a command (c) measures the real world (d) carries the data
5. 5.Which of these is not an IoT device? (a) an app-controlled bulb (b) a plain table fan (c) a Wi-Fi weather station (d) a smart energy meter
6. 6.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) Wi-Fi (c) sensor (d) phone app
8. 8.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
9. 9.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a plain table fan (d) a fitness band with app
10. 10.🔍 Which is the odd one out? (a) a battery torch (b) a wind-up clock (c) a plain table fan (d) a Wi-Fi doorbell camera
11. 11.🌐 In an IoT system, which part stores data online? (a) cloud server (b) microcontroller (c) sensor (d) phone app
12. 12.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
13. 13.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Internet of Things (d) Input of Tools
14. 14.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
15. 15.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) cloud server (c) phone app (d) microcontroller
16. 16.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the board reads it (b) the sensor measures
17. 17.🔍 Which is the odd one out? (a) a paper calendar (b) a battery torch (c) a fitness band with app (d) a plain wall switch
18. 18.🌐 In an IoT system, which part carries the data? (a) cloud server (b) Wi-Fi (c) phone app (d) sensor
19. 19.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a Wi-Fi smart plug
20. 20.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) by shouting (d) over Wi-Fi
21. 21.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
22. 22.What does the Wi-Fi link do? (a) measures the real world (b) shows data to you (c) carries the data (d) stores data online
23. 23.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the sensor measures (c) the board reads it (d) the cloud stores it
24. 24.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
25. 25.🔍 Which is the odd one out? (a) a fitness band with app (b) an app-controlled bulb (c) a paper calendar (d) a Wi-Fi smart plug
26. 26.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) a pencil sharpener (d) a smart energy meter
27. 27.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a pencil sharpener (d) a plain table fan
28. 28.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the sensor measures (c) the board reads it (d) the app shows it
29. 29.What does the actuator do? (a) measures the real world (b) shows data to you (c) stores data online (d) acts on a command
30. 30.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
31. 31.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
32. 32.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 170 readings take?
33. 33.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
34. 34.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
35. 35.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 90 readings take?
36. 36.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
37. 37.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a Wi-Fi smart plug (d) a wind-up clock
39. 39.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
40. 40.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?

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