Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 726 · 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 IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Inside of Toys (d) Internet of Things
2. 2.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a plain wall switch (d) a plain table fan
3. 3.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
4. 4.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) the sensor measures (c) it is sent by Wi-Fi (d) the cloud stores it
5. 5.What does the cloud server do? (a) shows data to you (b) measures the real world (c) stores data online (d) reads values, decides
6. 6.Which of these is an IoT device? (a) a pencil sharpener (b) a wind-up clock (c) a battery torch (d) a Wi-Fi weather station
7. 7.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) it is sent by Wi-Fi (c) the board reads it (d) the cloud stores it
8. 8.What does the Wi-Fi link do? (a) reads values, decides (b) carries the data (c) measures the real world (d) stores data online
9. 9.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the cloud stores it (c) the sensor measures (d) the board reads it
10. 10.🔢 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
11. 11.🌐 In an IoT system, which part stores data online? (a) phone app (b) cloud server (c) sensor (d) Wi-Fi
12. 12.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a wind-up clock (d) a Wi-Fi doorbell camera
13. 13.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
14. 14.What does the actuator do? (a) measures the real world (b) stores data online (c) reads values, decides (d) acts on a command
15. 15.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
16. 16.🔢 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
17. 17.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) through a candle (d) over Wi-Fi
18. 18.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) cloud server (c) sensor (d) phone app
19. 19.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
20. 20.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
21. 21.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the sensor measures (d) the board reads it
22. 22.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
23. 23.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) a wind-up clock (d) a Wi-Fi smart plug
24. 24.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the board reads it
25. 25.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a fitness band with app (d) a plain table fan
26. 26.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
27. 27.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
28. 28.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
29. 29.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the cloud stores it (d) the app shows it
30. 30.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a pencil sharpener
31. 31.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a plain wall switch (d) a battery torch
32. 32.Which of these is not an IoT device? (a) a plain wall switch (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
33. 33.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) lights on from an app (d) a hand fan
34. 34.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 180 readings take?
35. 35.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
36. 36.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
37. 37.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?
38. 38.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
39. 39.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) microcontroller (c) phone app (d) actuator
40. 40.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the cloud stores it”? (a) the app shows it (b) the cloud stores it

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