Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 915 · 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.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) by post (d) over Wi-Fi
2. 2.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
3. 3.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 150 readings take?
4. 4.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a fitness band with app (c) a pencil sharpener (d) a Wi-Fi smart plug
5. 5.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a battery torch (d) a smart energy meter
6. 6.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the app shows it (c) the sensor measures (d) the board reads it
8. 8.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Inside of Toys (d) Input of Tools
9. 9.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 70 readings take?
10. 10.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a paper calendar (c) a plain wall switch (d) a plain table fan
11. 11.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) it is sent by Wi-Fi (c) the sensor measures (d) the app shows it
13. 13.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
14. 14.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a plain table fan (d) a fitness band with app
15. 15.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
16. 16.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
17. 17.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
18. 18.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a fitness band with app (d) a pencil sharpener
19. 19.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a hand fan (d) a printed map
20. 20.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 7 minutes?
21. 21.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
22. 22.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the app shows it (b) the sensor measures
23. 23.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
24. 24.Which of these is an IoT device? (a) a plain table fan (b) a battery torch (c) a paper calendar (d) a Wi-Fi smart plug
25. 25.Which of these is an IoT device? (a) a fitness band with app (b) a paper calendar (c) a pencil sharpener (d) a battery torch
26. 26.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a smart energy meter (d) a wind-up clock
27. 27.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) cloud server (c) phone app (d) sensor
28. 28.What does the sensor do? (a) reads values, decides (b) measures the real world (c) carries the data (d) shows data to you
29. 29.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) Wi-Fi (c) sensor (d) actuator
30. 30.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) the board reads it
31. 31.🔍 Which is the odd one out? (a) a fitness band with app (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a wind-up clock
32. 32.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a plain wall switch (d) a pencil sharpener
33. 33.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
34. 34.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
35. 35.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
36. 36.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the app shows it (c) the cloud stores it (d) the board reads it
37. 37.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
38. 38.What does the cloud server do? (a) carries the data (b) reads values, decides (c) acts on a command (d) stores data online
39. 39.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the cloud stores it”? (a) the app shows it (b) the cloud stores it
40. 40.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?

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