Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 960 · 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 measures the real world? (a) actuator (b) sensor (c) Wi-Fi (d) phone app
2. 2.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Internet of Talk (d) Input of Tools
3. 3.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
4. 4.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the sensor measures (b) the board reads it
5. 5.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
6. 6.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a fitness band with app
8. 8.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
9. 9.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
10. 10.What does the actuator do? (a) measures the real world (b) acts on a command (c) reads values, decides (d) stores data online
11. 11.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) the board reads it (b) it is sent by Wi-Fi
13. 13.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 190 readings take?
14. 14.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 5 minutes?
15. 15.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) the board reads it (c) it is sent by Wi-Fi (d) the cloud stores it
16. 16.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 30 readings take?
17. 17.🔍 Which is the odd one out? (a) a fitness band with app (b) a pencil sharpener (c) a Wi-Fi smart plug (d) an app-controlled bulb
18. 18.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
19. 19.🔍 Which is the odd one out? (a) a battery torch (b) a paper calendar (c) a plain wall switch (d) a Wi-Fi smart plug
20. 20.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) a printed map (d) lights on from an app
21. 21.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
22. 22.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
23. 23.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the cloud stores it (c) it is sent by Wi-Fi (d) the app shows it
24. 24.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) cloud server (c) sensor (d) microcontroller
25. 25.What does the phone app do? (a) reads values, decides (b) stores data online (c) shows data to you (d) measures the real world
26. 26.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
27. 27.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
28. 28.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a plain wall switch
29. 29.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
30. 30.🌐 In an IoT system, which part shows data to you? (a) sensor (b) cloud server (c) Wi-Fi (d) phone app
31. 31.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a pencil sharpener
32. 32.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
33. 33.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a plain wall switch
34. 34.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by shouting (c) by post (d) through a candle
35. 35.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
36. 36.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
37. 37.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the cloud stores it (b) the board reads it
38. 38.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the sensor measures
39. 39.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the cloud stores it (d) the app shows it
40. 40.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) it is sent by Wi-Fi (c) the app shows it (d) the board reads it

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