Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 377 · 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.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) lights on from an app (d) a printed map
2. 2.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) through a candle (d) by post
3. 3.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a plain wall switch (d) a Wi-Fi weather station
4. 4.🌐 In an IoT system, which part carries the data? (a) phone app (b) sensor (c) Wi-Fi (d) microcontroller
5. 5.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
6. 6.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a fitness band with app (d) a Wi-Fi smart plug
7. 7.🔢 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
8. 8.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) actuator (c) cloud server (d) phone app
9. 9.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
10. 10.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a Wi-Fi smart plug (d) a battery torch
11. 11.🔢 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
12. 12.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Input of Tools (d) Internet of Things
13. 13.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) actuator (c) microcontroller (d) sensor
14. 14.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?
16. 16.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 10 minutes?
17. 17.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
18. 18.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the board reads it (c) the app shows it (d) it is sent by Wi-Fi
19. 19.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
20. 20.Which of these is not an IoT device? (a) a smart energy meter (b) a battery torch (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
21. 21.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?
22. 22.What does the cloud server do? (a) carries the data (b) measures the real world (c) stores data online (d) shows data to you
23. 23.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 100 readings take?
24. 24.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
25. 25.Which of these is an IoT device? (a) a wind-up clock (b) a plain table fan (c) a paper calendar (d) an app-controlled bulb
26. 26.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a wind-up clock
27. 27.What does the microcontroller do? (a) measures the real world (b) reads values, decides (c) acts on a command (d) shows data to you
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 4 minutes?
30. 30.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a fitness band with app
32. 32.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the cloud stores it
33. 33.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 150 readings take?
34. 34.🔍 Which is the odd one out? (a) a pencil sharpener (b) an app-controlled bulb (c) a plain table fan (d) a wind-up clock
35. 35.What does the actuator do? (a) acts on a command (b) carries the data (c) stores data online (d) shows data to you
36. 36.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
37. 37.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) the sensor measures (c) it is sent by Wi-Fi (d) the board reads it
38. 38.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the board reads it (d) the sensor measures
39. 39.What does the sensor do? (a) shows data to you (b) reads values, decides (c) acts on a command (d) measures the real world
40. 40.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 100 readings take?

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