Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 302 · 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.What does the phone app do? (a) stores data online (b) acts on a command (c) carries the data (d) shows data to you
2. 2.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
3. 3.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
4. 4.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Inside of Toys (d) Internet of Things
5. 5.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
6. 6.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?
9. 9.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
10. 10.What does the cloud server do? (a) stores data online (b) measures the real world (c) shows data to you (d) reads values, decides
11. 11.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 100 readings take?
12. 12.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🔢 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 app shows it (d) the board reads it
14. 14.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) over Wi-Fi (c) by shouting (d) through a candle
15. 15.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
16. 16.Which of these is an IoT device? (a) an app-controlled bulb (b) a battery torch (c) a pencil sharpener (d) a wind-up clock
17. 17.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a pencil sharpener
18. 18.🔍 Which is the odd one out? (a) a pencil sharpener (b) a paper calendar (c) a plain wall switch (d) a Wi-Fi smart plug
19. 19.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a smart energy meter (d) an app-controlled bulb
20. 20.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
21. 21.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a smart energy meter (d) a battery torch
22. 22.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the sensor measures
23. 23.Which of these is not an IoT device? (a) a paper calendar (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) an app-controlled bulb
24. 24.Which of these is an IoT device? (a) a plain wall switch (b) a battery torch (c) a pencil sharpener (d) a Wi-Fi smart plug
25. 25.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 110 readings take?
26. 26.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a wind-up clock (d) a Wi-Fi doorbell camera
27. 27.🏠 Which is a smart-home example? (a) lights on from an app (b) a hand fan (c) a printed map (d) a candle in a jar
28. 28.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
29. 29.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
30. 30.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
31. 31.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a fitness band with app
32. 32.🌐 In an IoT system, which part acts on a command? (a) phone app (b) sensor (c) actuator (d) microcontroller
33. 33.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) microcontroller (c) actuator (d) Wi-Fi
34. 34.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
35. 35.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
36. 36.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a wind-up clock
37. 37.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
38. 38.What does the microcontroller do? (a) measures the real world (b) reads values, decides (c) shows data to you (d) acts on a command
39. 39.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the board reads it (c) it is sent by Wi-Fi (d) the sensor measures
40. 40.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) cloud server (c) Wi-Fi (d) phone app

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