Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 580 · 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.Which of these is not an IoT device? (a) a battery torch (b) a fitness band with app (c) an app-controlled bulb (d) a Wi-Fi smart plug
2. 2.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the sensor measures (b) the cloud stores it
3. 3.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain wall switch (c) a paper calendar (d) a Wi-Fi smart plug
4. 4.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) Wi-Fi (c) actuator (d) phone app
5. 5.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
6. 6.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
8. 8.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) over Wi-Fi (d) by shouting
9. 9.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the cloud stores it (c) the board reads it (d) the sensor measures
10. 10.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
11. 11.What does the Wi-Fi link do? (a) reads values, decides (b) shows data to you (c) carries the data (d) stores data online
12. 12.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 7 minutes?
13. 13.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 40 readings take?
14. 14.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
15. 15.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
17. 17.Which of these is an IoT device? (a) a plain table fan (b) a pencil sharpener (c) a battery torch (d) a smart energy meter
18. 18.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
19. 19.What does the sensor do? (a) measures the real world (b) shows data to you (c) reads values, decides (d) carries the data
20. 20.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 130 readings take?
21. 21.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
22. 22.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 180 readings take?
23. 23.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the cloud stores it (c) the sensor measures (d) the board reads it
24. 24.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) a printed map (d) lights on from an app
25. 25.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
26. 26.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 7 minutes?
27. 27.What does the microcontroller do? (a) shows data to you (b) measures the real world (c) reads values, decides (d) carries the data
28. 28.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) microcontroller (c) sensor (d) cloud server
29. 29.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
30. 30.What does the actuator do? (a) measures the real world (b) acts on a command (c) stores data online (d) reads values, decides
31. 31.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Internet of Talk (d) Input of Tools
32. 32.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
33. 33.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a plain wall switch (d) a Wi-Fi weather station
34. 34.🔍 Which is the odd one out? (a) a paper calendar (b) a pencil sharpener (c) a Wi-Fi weather station (d) a battery torch
35. 35.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 30 readings take?
36. 36.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
37. 37.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a plain table fan (d) an app-controlled bulb
38. 38.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
39. 39.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a plain table fan (c) a paper calendar (d) a plain wall switch
40. 40.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 120 readings take?

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