Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 679 · 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 is a smart-home example? (a) a hand fan (b) a candle in a jar (c) a printed map (d) lights on from an app
2. 2.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Internet of Things (d) Inside of Toys
3. 3.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 180 readings take?
4. 4.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) sensor (c) actuator (d) phone app
5. 5.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
6. 6.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 120 readings take?
7. 7.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) cloud server (c) actuator (d) phone app
8. 8.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the app shows it (b) the sensor measures
9. 9.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
10. 10.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
12. 12.What does the actuator do? (a) shows data to you (b) measures the real world (c) stores data online (d) acts on a command
13. 13.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🔍 Which is the odd one out? (a) a pencil sharpener (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a paper calendar
16. 16.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a smart energy meter (d) an app-controlled bulb
17. 17.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) through a candle (d) over Wi-Fi
18. 18.Which of these is not an IoT device? (a) a paper calendar (b) a smart energy meter (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
19. 19.🌐 In an IoT system, which part stores data online? (a) cloud server (b) actuator (c) phone app (d) Wi-Fi
20. 20.🌐 In an IoT system, which part measures the real world? (a) sensor (b) Wi-Fi (c) phone app (d) microcontroller
21. 21.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
22. 22.What does the microcontroller do? (a) acts on a command (b) stores data online (c) shows data to you (d) reads values, decides
23. 23.What does the sensor do? (a) reads values, decides (b) carries the data (c) acts on a command (d) measures the real world
24. 24.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the board reads it (c) the sensor measures (d) the app shows it
25. 25.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
26. 26.Which of these is not an IoT device? (a) a smart energy meter (b) a battery torch (c) a Wi-Fi weather station (d) an app-controlled bulb
27. 27.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
28. 28.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
29. 29.🔍 Which is the odd one out? (a) a plain wall switch (b) a plain table fan (c) a fitness band with app (d) a pencil sharpener
30. 30.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
31. 31.Which of these is an IoT device? (a) a plain wall switch (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a pencil sharpener
32. 32.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a fitness band with app
33. 33.What does the cloud server do? (a) stores data online (b) carries the data (c) measures the real world (d) reads values, decides
34. 34.Which of these is not an IoT device? (a) a fitness band with app (b) a pencil sharpener (c) an app-controlled bulb (d) a Wi-Fi weather station
35. 35.What does the phone app do? (a) shows data to you (b) reads values, decides (c) acts on a command (d) measures the real world
36. 36.🔢 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 cloud stores it (d) the board reads it
37. 37.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 10 minutes?
38. 38.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) phone app (c) cloud server (d) microcontroller
39. 39.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
40. 40.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?

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