Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 695 · 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 5 seconds. How many readings does it send in 1 minute?
2. 2.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) sensor (c) microcontroller (d) cloud server
3. 3.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) sensor (c) microcontroller (d) actuator
4. 4.What does the Wi-Fi link do? (a) acts on a command (b) shows data to you (c) reads values, decides (d) carries the data
5. 5.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a plain wall switch (d) a smart energy meter
6. 6.🌐 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
7. 7.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
8. 8.🌐 In an IoT system, which part measures the real world? (a) actuator (b) sensor (c) Wi-Fi (d) microcontroller
9. 9.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi smart plug (c) a wind-up clock (d) a pencil sharpener
10. 10.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) a battery torch (d) an app-controlled bulb
11. 11.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
12. 12.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Internet of Things (d) Inside of Toys
14. 14.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) a hand fan (d) lights on from an app
15. 15.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
16. 16.Which of these is not an IoT device? (a) a fitness band with app (b) an app-controlled bulb (c) a smart energy meter (d) a plain table fan
17. 17.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
18. 18.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the app shows it (c) the sensor measures (d) the cloud stores it
19. 19.🔍 Which is the odd one out? (a) a paper calendar (b) an app-controlled bulb (c) a plain wall switch (d) a pencil sharpener
20. 20.What does the microcontroller do? (a) measures the real world (b) stores data online (c) reads values, decides (d) carries the data
21. 21.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
22. 22.🔍 Which is the odd one out? (a) a pencil sharpener (b) a smart energy meter (c) a Wi-Fi smart plug (d) a fitness band with app
23. 23.Which of these is an IoT device? (a) a pencil sharpener (b) a Wi-Fi weather station (c) a battery torch (d) a plain wall switch
24. 24.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) the board reads it (b) it is sent by Wi-Fi
25. 25.🌐 In an IoT system, which part acts on a command? (a) actuator (b) phone app (c) microcontroller (d) sensor
26. 26.What does the phone app do? (a) shows data to you (b) stores data online (c) acts on a command (d) carries the data
27. 27.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) it is sent by Wi-Fi (c) the sensor measures (d) the cloud stores it
28. 28.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the cloud stores it (b) the board reads it
29. 29.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) the app shows it (b) it is sent by Wi-Fi
30. 30.🔍 Which is the odd one out? (a) a paper calendar (b) a plain wall switch (c) a smart energy meter (d) a plain table fan
31. 31.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a plain wall switch
32. 32.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
33. 33.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a pencil sharpener (d) a battery torch
34. 34.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 110 readings take?
35. 35.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a fitness band with app (c) a plain table fan (d) a Wi-Fi doorbell camera
36. 36.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
37. 37.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a Wi-Fi smart plug
38. 38.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 170 readings take?
39. 39.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?

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