Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 656 · 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 130 readings take?
2. 2.🔢 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 sensor measures (c) the cloud stores it (d) the app shows it
3. 3.What does the actuator do? (a) acts on a command (b) shows data to you (c) reads values, decides (d) carries the data
4. 4.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a battery torch (c) a pencil sharpener (d) a wind-up clock
5. 5.What does the sensor do? (a) reads values, decides (b) carries the data (c) measures the real world (d) shows data to you
6. 6.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) actuator (c) Wi-Fi (d) phone app
7. 7.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
8. 8.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a battery torch (d) a wind-up clock
9. 9.🌐 In an IoT system, which part acts on a command? (a) actuator (b) sensor (c) cloud server (d) phone app
10. 10.🏠 Which is a smart-home example? (a) a hand fan (b) lights on from an app (c) a candle in a jar (d) a printed map
11. 11.Which of these is an IoT device? (a) a plain wall switch (b) an app-controlled bulb (c) a paper calendar (d) a pencil sharpener
12. 12.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Inside of Toys (d) Internet of Things
13. 13.🔍 Which is the odd one out? (a) a plain table fan (b) a pencil sharpener (c) a battery torch (d) a fitness band with app
14. 14.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a Wi-Fi weather station (d) a smart energy meter
15. 15.What does the phone app do? (a) stores data online (b) reads values, decides (c) shows data to you (d) measures the real world
16. 16.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) cloud server (c) Wi-Fi (d) microcontroller
17. 17.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
18. 18.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
19. 19.Which of these is an IoT device? (a) a fitness band with app (b) a paper calendar (c) a plain table fan (d) a wind-up clock
20. 20.🌐 In an IoT system, which part measures the real world? (a) sensor (b) Wi-Fi (c) cloud server (d) phone app
21. 21.What does the cloud server do? (a) shows data to you (b) reads values, decides (c) stores data online (d) carries the data
22. 22.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi weather station (c) a plain table fan (d) a wind-up clock
23. 23.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the sensor measures (c) the cloud stores it (d) the app shows it
24. 24.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
25. 25.Which of these is an IoT device? (a) a pencil sharpener (b) a wind-up clock (c) a paper calendar (d) a smart energy meter
26. 26.🌐 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
27. 27.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) cloud server (c) actuator (d) sensor
28. 28.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
29. 29.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 5 minutes?
30. 30.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
31. 31.What does the microcontroller do? (a) stores data online (b) carries the data (c) acts on a command (d) reads values, decides
32. 32.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
33. 33.What does the Wi-Fi link do? (a) measures the real world (b) stores data online (c) reads values, decides (d) carries the data
34. 34.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the board reads it (c) the cloud stores it (d) it is sent by Wi-Fi
35. 35.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
36. 36.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
37. 37.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a Wi-Fi weather station
38. 38.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a paper calendar (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
39. 39.🌐 In an IoT system, which part stores data online? (a) cloud server (b) actuator (c) phone app (d) sensor
40. 40.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?

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