Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 934 · 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 the odd one out? (a) a wind-up clock (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
2. 2.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) the sensor measures (b) it is sent by Wi-Fi
3. 3.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Talk (d) Internet of Things
4. 4.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) sensor (c) microcontroller (d) actuator
5. 5.What does the Wi-Fi link do? (a) measures the real world (b) stores data online (c) carries the data (d) reads values, decides
6. 6.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a paper calendar
8. 8.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) the sensor measures
9. 9.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
10. 10.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 9 minutes?
11. 11.🌐 In an IoT system, which part stores data online? (a) cloud server (b) microcontroller (c) Wi-Fi (d) sensor
12. 12.Which of these is an IoT device? (a) a plain wall switch (b) a plain table fan (c) a pencil sharpener (d) a fitness band with app
13. 13.🌐 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
14. 14.🏠 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
15. 15.What does the actuator do? (a) measures the real world (b) reads values, decides (c) carries the data (d) acts on a command
16. 16.🔍 Which is the odd one out? (a) a paper calendar (b) a plain wall switch (c) a plain table fan (d) a Wi-Fi doorbell camera
17. 17.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the board reads it (c) the app shows it (d) the sensor measures
18. 18.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 8 minutes?
19. 19.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
20. 20.What does the phone app do? (a) measures the real world (b) carries the data (c) shows data to you (d) acts on a command
21. 21.🔍 Which is the odd one out? (a) a plain wall switch (b) a fitness band with app (c) a Wi-Fi weather station (d) a smart energy meter
22. 22.🌐 In an IoT system, which part measures the real world? (a) actuator (b) cloud server (c) sensor (d) Wi-Fi
23. 23.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
24. 24.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a plain table fan (d) an app-controlled bulb
25. 25.🔍 Which is the odd one out? (a) a pencil sharpener (b) a battery torch (c) a Wi-Fi smart plug (d) a paper calendar
26. 26.🔍 Which is the odd one out? (a) a fitness band with app (b) a battery torch (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
27. 27.🔢 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
28. 28.What does the microcontroller do? (a) reads values, decides (b) measures the real world (c) stores data online (d) carries the data
29. 29.🔢 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
30. 30.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 60 readings take?
32. 32.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the cloud stores it (b) the sensor measures
33. 33.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
34. 34.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 160 readings take?
36. 36.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
37. 37.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a smart energy meter (d) a plain table fan
38. 38.🔢 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) the board reads it (d) it is sent by Wi-Fi
39. 39.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 110 readings take?
40. 40.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi weather station (c) a paper calendar (d) a battery torch

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