Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 817 · 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.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
2. 2.Which of these is not an IoT device? (a) an app-controlled bulb (b) a fitness band with app (c) a Wi-Fi smart plug (d) a wind-up clock
3. 3.What does the phone app do? (a) acts on a command (b) shows data to you (c) carries the data (d) measures the real world
4. 4.Which of these is an IoT device? (a) a plain wall switch (b) a plain table fan (c) a Wi-Fi smart plug (d) a battery torch
5. 5.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) a Wi-Fi doorbell camera (d) a pencil sharpener
6. 6.🔢 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
7. 7.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) actuator (c) cloud server (d) sensor
9. 9.🌐 In an IoT system, which part shows data to you? (a) sensor (b) actuator (c) phone app (d) Wi-Fi
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 60 seconds. How many readings does it send in 1 minute?
12. 12.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a plain wall switch (d) a battery torch
13. 13.What does the microcontroller do? (a) shows data to you (b) stores data online (c) reads values, decides (d) measures the real world
14. 14.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) actuator (c) phone app (d) sensor
15. 15.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the board reads it (c) the sensor measures (d) the cloud stores it
16. 16.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
17. 17.Which of these is not an IoT device? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
18. 18.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a battery torch (d) a Wi-Fi smart plug
19. 19.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
20. 20.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
21. 21.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
22. 22.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the board reads it (b) the sensor measures
23. 23.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a hand fan (d) a candle in a jar
24. 24.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
25. 25.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
26. 26.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?
27. 27.What does the sensor do? (a) reads values, decides (b) carries the data (c) measures the real world (d) shows data to you
28. 28.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
29. 29.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a paper calendar
30. 30.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
31. 31.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
32. 32.🌐 In an IoT system, which part acts on a command? (a) actuator (b) phone app (c) Wi-Fi (d) sensor
33. 33.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) over Wi-Fi (d) through a candle
34. 34.🔢 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 app shows it (c) the cloud stores it (d) the sensor measures
35. 35.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
36. 36.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a plain table fan (d) a smart energy meter
37. 37.🔍 Which is the odd one out? (a) a pencil sharpener (b) a paper calendar (c) an app-controlled bulb (d) a wind-up clock
38. 38.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) it is sent by Wi-Fi (b) the cloud stores it
40. 40.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the sensor measures (c) the board reads it (d) it is sent by Wi-Fi

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