Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 909 · 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.What does the Wi-Fi link do? (a) acts on a command (b) measures the real world (c) carries the data (d) shows data to you
2. 2.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) the cloud stores it (b) it is sent by Wi-Fi
3. 3.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) a hand fan (d) lights on from an app
4. 4.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) phone app (c) cloud server (d) actuator
5. 5.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Input of Tools (d) Internet of Talk
6. 6.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a wind-up clock (d) a Wi-Fi doorbell camera
7. 7.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by post (d) by shouting
8. 8.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) the board reads it (c) the app shows it (d) it is sent by Wi-Fi
9. 9.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
10. 10.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 170 readings take?
11. 11.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) a fitness band with app (d) a pencil sharpener
12. 12.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a battery torch (d) a Wi-Fi smart plug
14. 14.🔍 Which is the odd one out? (a) a paper calendar (b) a plain wall switch (c) an app-controlled bulb (d) a plain table fan
15. 15.What does the actuator do? (a) carries the data (b) measures the real world (c) reads values, decides (d) acts on a command
16. 16.🔍 Which is the odd one out? (a) a pencil sharpener (b) a battery torch (c) a plain wall switch (d) a Wi-Fi doorbell camera
17. 17.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) the sensor measures
18. 18.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the cloud stores it (b) the sensor measures
19. 19.What does the phone app do? (a) shows data to you (b) acts on a command (c) measures the real world (d) reads values, decides
20. 20.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain table fan (c) a fitness band with app (d) a Wi-Fi smart plug
21. 21.🔍 Which is the odd one out? (a) a plain table fan (b) a wind-up clock (c) a fitness band with app (d) a plain wall switch
22. 22.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
23. 23.Which of these is not an IoT device? (a) an app-controlled bulb (b) a fitness band with app (c) a pencil sharpener (d) a smart energy meter
24. 24.What does the microcontroller do? (a) stores data online (b) reads values, decides (c) shows data to you (d) acts on a command
25. 25.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) it is sent by Wi-Fi (b) the sensor measures (c) the cloud stores it (d) the app shows it
26. 26.🌐 In an IoT system, which part stores data online? (a) sensor (b) actuator (c) cloud server (d) phone app
27. 27.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) cloud server (c) sensor (d) microcontroller
28. 28.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
29. 29.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
30. 30.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
31. 31.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a plain wall switch (d) a battery torch
32. 32.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) it is sent by Wi-Fi (b) the board reads it
33. 33.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
34. 34.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
35. 35.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
36. 36.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
37. 37.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a pencil sharpener (c) an app-controlled bulb (d) a smart energy meter
38. 38.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain table fan (c) a Wi-Fi weather station (d) a plain wall switch
39. 39.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
40. 40.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 40 readings take?

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