Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 128 · 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.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the app shows it (b) the sensor measures
2. 2.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a printed map (d) a hand fan
3. 3.What does the sensor do? (a) carries the data (b) measures the real world (c) reads values, decides (d) acts on a command
4. 4.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) phone app (c) microcontroller (d) actuator
5. 5.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a Wi-Fi smart plug (d) a plain table fan
6. 6.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
7. 7.Which of these is not an IoT device? (a) a fitness band with app (b) a pencil sharpener (c) a Wi-Fi smart plug (d) an app-controlled bulb
8. 8.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
9. 9.🌐 In an IoT system, which part carries the data? (a) phone app (b) sensor (c) microcontroller (d) Wi-Fi
10. 10.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
11. 11.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🔍 Which is the odd one out? (a) a plain table fan (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a battery torch
14. 14.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) phone app (c) sensor (d) actuator
15. 15.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a battery torch (d) an app-controlled bulb
16. 16.What does the phone app do? (a) stores data online (b) carries the data (c) measures the real world (d) shows data to you
17. 17.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
18. 18.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by post (d) by shouting
19. 19.🔍 Which is the odd one out? (a) a plain table fan (b) a smart energy meter (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
20. 20.🌐 In an IoT system, which part stores data online? (a) cloud server (b) sensor (c) actuator (d) phone app
21. 21.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a wind-up clock (d) a battery torch
22. 22.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
23. 23.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the board reads it (b) the app shows it (c) the sensor measures (d) the cloud stores it
24. 24.What does the microcontroller do? (a) carries the data (b) shows data to you (c) reads values, decides (d) measures the real world
25. 25.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain table fan (c) a paper calendar (d) a battery torch
26. 26.What does the cloud server do? (a) carries the data (b) reads values, decides (c) stores data online (d) acts on a command
27. 27.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
28. 28.🔍 Which is the odd one out? (a) a plain wall switch (b) a pencil sharpener (c) a fitness band with app (d) a wind-up clock
29. 29.What does the Wi-Fi link do? (a) stores data online (b) carries the data (c) shows data to you (d) measures the real world
30. 30.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the sensor measures (d) the board reads it
31. 31.Which of these is an IoT device? (a) a plain wall switch (b) an app-controlled bulb (c) a wind-up clock (d) a battery torch
32. 32.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?
33. 33.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
34. 34.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?
35. 35.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
36. 36.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
37. 37.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
38. 38.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
39. 39.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a wind-up clock
40. 40.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) a battery torch (d) a Wi-Fi weather station

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