Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 878 · 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.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
3. 3.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) the sensor measures (c) it is sent by Wi-Fi (d) the board reads it
4. 4.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) cloud server (c) phone app (d) sensor
5. 5.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
6. 6.What does the sensor do? (a) shows data to you (b) acts on a command (c) reads values, decides (d) measures the real world
7. 7.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
8. 8.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) Wi-Fi (c) actuator (d) microcontroller
9. 9.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi smart plug (c) a fitness band with app (d) a smart energy meter
10. 10.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🔢 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 sensor measures (c) the board reads it (d) the cloud stores it
12. 12.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 40 readings take?
13. 13.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 30 readings take?
14. 14.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
15. 15.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the cloud stores it”? (a) the cloud stores it (b) the app shows it
16. 16.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a battery torch (d) a Wi-Fi weather station
17. 17.🔢 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) it is sent by Wi-Fi
18. 18.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the sensor measures (c) the board reads it (d) the cloud stores it
19. 19.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the cloud stores it (b) the sensor measures
20. 20.What does the microcontroller do? (a) measures the real world (b) carries the data (c) reads values, decides (d) stores data online
21. 21.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
22. 22.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
23. 23.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
24. 24.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
25. 25.Which of these is an IoT device? (a) a plain wall switch (b) a wind-up clock (c) a battery torch (d) a smart energy meter
26. 26.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 180 readings take?
27. 27.🌐 In an IoT system, which part carries the data? (a) phone app (b) cloud server (c) sensor (d) Wi-Fi
28. 28.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Input of Tools (d) Internet of Talk
29. 29.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
30. 30.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a plain wall switch
32. 32.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
33. 33.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a smart energy meter (d) a paper calendar
34. 34.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
35. 35.🏠 Which is a smart-home example? (a) a printed map (b) a candle in a jar (c) a hand fan (d) lights on from an app
36. 36.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a smart energy meter (d) a pencil sharpener
37. 37.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 180 readings take?
38. 38.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
39. 39.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a smart energy meter (c) a pencil sharpener (d) an app-controlled bulb

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