Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 250 · 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 reads values, decides? (a) microcontroller (b) sensor (c) phone app (d) cloud server
2. 2.🔍 Which is the odd one out? (a) a paper calendar (b) a fitness band with app (c) a plain wall switch (d) a pencil sharpener
3. 3.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a smart energy meter (d) a battery torch
4. 4.What does the Wi-Fi link do? (a) acts on a command (b) stores data online (c) reads values, decides (d) carries the data
5. 5.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
6. 6.🔍 Which is the odd one out? (a) a plain wall switch (b) an app-controlled bulb (c) a fitness band with app (d) a Wi-Fi smart plug
7. 7.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
8. 8.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
9. 9.🌐 In an IoT system, which part carries the data? (a) sensor (b) cloud server (c) Wi-Fi (d) phone app
10. 10.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
12. 12.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a paper calendar
14. 14.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
16. 16.Which of these is an IoT device? (a) a pencil sharpener (b) a wind-up clock (c) a battery torch (d) a Wi-Fi doorbell camera
17. 17.Which of these is an IoT device? (a) a pencil sharpener (b) a plain table fan (c) a paper calendar (d) a smart energy meter
18. 18.Which of these is not an IoT device? (a) a smart energy meter (b) a plain table fan (c) an app-controlled bulb (d) a fitness band with app
19. 19.🌐 In an IoT system, which part shows data to you? (a) sensor (b) phone app (c) cloud server (d) microcontroller
20. 20.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
21. 21.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 100 readings take?
22. 22.🌐 In an IoT system, which part measures the real world? (a) actuator (b) microcontroller (c) sensor (d) phone app
23. 23.Which of these is an IoT device? (a) a pencil sharpener (b) a plain wall switch (c) a battery torch (d) a Wi-Fi smart plug
24. 24.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a pencil sharpener (d) a Wi-Fi doorbell camera
25. 25.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 150 readings take?
26. 26.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?
27. 27.Which of these is an IoT device? (a) a plain table fan (b) a battery torch (c) a pencil sharpener (d) a fitness band with app
28. 28.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
29. 29.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 90 readings take?
30. 30.🔍 Which is the odd one out? (a) a wind-up clock (b) a battery torch (c) a plain table fan (d) a Wi-Fi smart plug
31. 31.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a smart energy meter (d) a plain table fan
32. 32.What does the sensor do? (a) reads values, decides (b) acts on a command (c) measures the real world (d) stores data online
33. 33.Which of these is an IoT device? (a) a wind-up clock (b) a Wi-Fi weather station (c) a plain wall switch (d) a plain table fan
34. 34.🔍 Which is the odd one out? (a) a plain table fan (b) a smart energy meter (c) a paper calendar (d) a wind-up clock
35. 35.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
36. 36.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) the app shows it (c) the cloud stores it (d) it is sent by Wi-Fi
37. 37.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the sensor measures (b) the app shows it
38. 38.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a plain wall switch
39. 39.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) by post (d) through a candle
40. 40.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?

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