Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 701 · 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) over Wi-Fi (b) by shouting (c) through a candle (d) by post
2. 2.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a paper calendar (c) a pencil sharpener (d) a battery torch
3. 3.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
4. 4.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a Wi-Fi weather station (d) a plain wall switch
5. 5.What does the cloud server do? (a) measures the real world (b) carries the data (c) shows data to you (d) stores data online
6. 6.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 190 readings take?
7. 7.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Input of Tools (d) Internet of Talk
8. 8.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a pencil sharpener
9. 9.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
10. 10.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
12. 12.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
13. 13.🔍 Which is the odd one out? (a) a fitness band with app (b) a battery torch (c) a pencil sharpener (d) a plain wall switch
14. 14.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
15. 15.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
16. 16.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a plain wall switch
17. 17.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
18. 18.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
19. 19.🔍 Which is the odd one out? (a) a battery torch (b) a wind-up clock (c) a pencil sharpener (d) a Wi-Fi smart plug
20. 20.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) microcontroller (c) actuator (d) cloud server
21. 21.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) it is sent by Wi-Fi (c) the app shows it (d) the cloud stores it
22. 22.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) cloud server (c) actuator (d) Wi-Fi
23. 23.What does the actuator do? (a) acts on a command (b) stores data online (c) shows data to you (d) reads values, decides
24. 24.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 80 readings take?
25. 25.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
26. 26.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) phone app (c) cloud server (d) sensor
27. 27.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
28. 28.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
29. 29.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the board reads it (d) the sensor measures
30. 30.🏠 Which is a smart-home example? (a) a hand fan (b) a printed map (c) a candle in a jar (d) lights on from an app
31. 31.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?
32. 32.Which of these is not an IoT device? (a) a battery torch (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a smart energy meter
33. 33.Which of these is not an IoT device? (a) a plain wall switch (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a fitness band with app
34. 34.What does the sensor do? (a) carries the data (b) measures the real world (c) shows data to you (d) reads values, decides
35. 35.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the board reads it
36. 36.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
37. 37.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
38. 38.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
39. 39.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
40. 40.🌐 In an IoT system, which part stores data online? (a) cloud server (b) microcontroller (c) sensor (d) phone app

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