Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 259 · 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.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) phone app (c) cloud server (d) sensor
2. 2.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
3. 3.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
4. 4.🌐 In an IoT system, which part acts on a command? (a) sensor (b) microcontroller (c) actuator (d) Wi-Fi
5. 5.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) phone app (c) sensor (d) actuator
6. 6.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
7. 7.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) it is sent by Wi-Fi (c) the sensor measures (d) the cloud stores it
8. 8.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
9. 9.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) actuator (c) phone app (d) microcontroller
10. 10.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a fitness band with app (d) a plain wall switch
12. 12.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
13. 13.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain table fan (c) a battery torch (d) a plain wall switch
14. 14.Which of these is not an IoT device? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a fitness band with app
15. 15.🌐 In an IoT system, which part carries the data? (a) phone app (b) Wi-Fi (c) microcontroller (d) sensor
16. 16.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Talk (d) Internet of Things
17. 17.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
18. 18.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
19. 19.What does the phone app do? (a) carries the data (b) shows data to you (c) measures the real world (d) acts on a command
20. 20.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a pencil sharpener (d) a Wi-Fi smart plug
21. 21.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by shouting (d) by post
22. 22.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
23. 23.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
24. 24.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the app shows it (b) the cloud stores it
25. 25.🔢 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
26. 26.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 130 readings take?
27. 27.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
28. 28.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 7 minutes?
29. 29.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
30. 30.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
31. 31.🏠 Which is a smart-home example? (a) lights on from an app (b) a candle in a jar (c) a hand fan (d) a printed map
32. 32.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the sensor measures (d) the board reads it
33. 33.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a plain table fan
34. 34.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a wind-up clock (d) a Wi-Fi smart plug
35. 35.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
36. 36.🌐 In an IoT system, which part stores data online? (a) phone app (b) cloud server (c) actuator (d) microcontroller
37. 37.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a battery torch (d) a pencil sharpener
38. 38.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) it is sent by Wi-Fi (b) the sensor measures
39. 39.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) the app shows it (b) it is sent by Wi-Fi
40. 40.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?

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