Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 568 · 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.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) by post (d) through a candle
2. 2.🔍 Which is the odd one out? (a) a battery torch (b) a wind-up clock (c) a plain wall switch (d) a fitness band with app
3. 3.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
4. 4.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 7 minutes?
5. 5.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 10 minutes?
6. 6.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) it is sent by Wi-Fi (b) the sensor measures
7. 7.🏠 Which is a smart-home example? (a) lights on from an app (b) a candle in a jar (c) a printed map (d) a hand fan
8. 8.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
9. 9.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
10. 10.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the sensor measures
12. 12.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) microcontroller (c) sensor (d) actuator
13. 13.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Input of Tools (d) Inside of Toys
14. 14.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
15. 15.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
16. 16.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
17. 17.🌐 In an IoT system, which part stores data online? (a) sensor (b) cloud server (c) phone app (d) microcontroller
18. 18.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) the cloud stores it (b) it is sent by Wi-Fi
19. 19.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) it is sent by Wi-Fi (c) the app shows it (d) the sensor measures
20. 20.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
21. 21.What does the sensor do? (a) reads values, decides (b) shows data to you (c) measures the real world (d) carries the data
22. 22.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the app shows it (b) the board reads it
23. 23.🔢 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
24. 24.What does the microcontroller do? (a) reads values, decides (b) carries the data (c) stores data online (d) measures the real world
25. 25.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
26. 26.Which of these is not an IoT device? (a) a wind-up clock (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
27. 27.🌐 In an IoT system, which part carries the data? (a) sensor (b) microcontroller (c) cloud server (d) Wi-Fi
28. 28.Which of these is not an IoT device? (a) a battery torch (b) a smart energy meter (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
29. 29.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi smart plug (c) a smart energy meter (d) a Wi-Fi doorbell camera
30. 30.🌐 In an IoT system, which part measures the real world? (a) actuator (b) sensor (c) Wi-Fi (d) cloud server
31. 31.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) actuator (c) phone app (d) sensor
32. 32.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
33. 33.Which of these is not an IoT device? (a) a plain table fan (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a fitness band with app
34. 34.🔍 Which is the odd one out? (a) a battery torch (b) a plain table fan (c) a plain wall switch (d) a Wi-Fi weather station
35. 35.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the cloud stores it (c) the board reads it (d) the app shows it
36. 36.What does the actuator do? (a) acts on a command (b) measures the real world (c) carries the data (d) stores data online
37. 37.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
38. 38.Which of these is an IoT device? (a) an app-controlled bulb (b) a wind-up clock (c) a paper calendar (d) a battery torch
39. 39.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
40. 40.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a plain wall switch (d) a paper calendar

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