Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 482 · 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.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 180 readings take?
2. 2.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the cloud stores it (c) the sensor measures (d) the app shows it
3. 3.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
4. 4.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the app shows it (c) it is sent by Wi-Fi (d) the cloud stores it
5. 5.What does the sensor do? (a) stores data online (b) measures the real world (c) shows data to you (d) reads values, decides
6. 6.🌐 In an IoT system, which part carries the data? (a) cloud server (b) actuator (c) microcontroller (d) Wi-Fi
7. 7.🌐 In an IoT system, which part shows data to you? (a) sensor (b) phone app (c) Wi-Fi (d) microcontroller
8. 8.Which of these is an IoT device? (a) a smart energy meter (b) a pencil sharpener (c) a plain table fan (d) a plain wall switch
9. 9.What does the cloud server do? (a) acts on a command (b) reads values, decides (c) stores data online (d) carries the data
10. 10.Which of these is not an IoT device? (a) an app-controlled bulb (b) a plain table fan (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
11. 11.🔍 Which is the odd one out? (a) a plain wall switch (b) an app-controlled bulb (c) a plain table fan (d) a pencil sharpener
12. 12.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 180 readings take?
13. 13.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
14. 14.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
15. 15.Which of these is an IoT device? (a) a plain table fan (b) a pencil sharpener (c) a wind-up clock (d) a Wi-Fi weather station
16. 16.Which of these is an IoT device? (a) a battery torch (b) a fitness band with app (c) a plain wall switch (d) a paper calendar
17. 17.🌐 In an IoT system, which part acts on a command? (a) sensor (b) microcontroller (c) Wi-Fi (d) actuator
18. 18.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
19. 19.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
20. 20.What does the actuator do? (a) reads values, decides (b) acts on a command (c) measures the real world (d) shows data to you
21. 21.🔍 Which is the odd one out? (a) a pencil sharpener (b) a wind-up clock (c) a fitness band with app (d) a paper calendar
22. 22.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the sensor measures (c) the app shows it (d) it is sent by Wi-Fi
23. 23.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
24. 24.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 140 readings take?
25. 25.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 90 readings take?
26. 26.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a wind-up clock (d) a plain wall switch
27. 27.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
28. 28.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
29. 29.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) through a candle (d) over Wi-Fi
30. 30.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
31. 31.Which of these is not an IoT device? (a) a battery torch (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
32. 32.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
33. 33.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a hand fan (d) a candle in a jar
34. 34.🌐 In an IoT system, which part measures the real world? (a) phone app (b) actuator (c) sensor (d) Wi-Fi
35. 35.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
36. 36.What does the phone app do? (a) measures the real world (b) reads values, decides (c) shows data to you (d) carries the data
37. 37.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
38. 38.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) it is sent by Wi-Fi (b) the app shows it
39. 39.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a pencil sharpener (d) a smart energy meter
40. 40.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?

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