Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 677 · 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 of these is an IoT device? (a) a pencil sharpener (b) a wind-up clock (c) a plain wall switch (d) an app-controlled bulb
2. 2.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) cloud server (c) sensor (d) phone app
3. 3.Which of these is not an IoT device? (a) a pencil sharpener (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
4. 4.Which of these is not an IoT device? (a) an app-controlled bulb (b) a plain wall switch (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
5. 5.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by post (c) through a candle (d) by shouting
6. 6.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
7. 7.What does the phone app do? (a) reads values, decides (b) measures the real world (c) stores data online (d) shows data to you
8. 8.🌐 In an IoT system, which part measures the real world? (a) phone app (b) microcontroller (c) cloud server (d) sensor
9. 9.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Things (d) Internet of Talk
10. 10.🔍 Which is the odd one out? (a) a wind-up clock (b) a pencil sharpener (c) a paper calendar (d) a Wi-Fi smart plug
11. 11.🔍 Which is the odd one out? (a) a pencil sharpener (b) a battery torch (c) a plain table fan (d) an app-controlled bulb
12. 12.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the board reads it (c) the cloud stores it (d) the app shows it
13. 13.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
15. 15.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 190 readings take?
16. 16.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a paper calendar
17. 17.🔍 Which is the odd one out? (a) a smart energy meter (b) a paper calendar (c) a plain table fan (d) a pencil sharpener
18. 18.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
19. 19.What does the actuator do? (a) shows data to you (b) acts on a command (c) carries the data (d) measures the real world
20. 20.What does the microcontroller do? (a) carries the data (b) shows data to you (c) reads values, decides (d) acts on a command
21. 21.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) lights on from an app (d) a printed map
22. 22.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
23. 23.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 40 readings take?
24. 24.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi weather station (c) a pencil sharpener (d) a battery torch
25. 25.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) cloud server (c) sensor (d) Wi-Fi
26. 26.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?
27. 27.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi smart plug (c) a pencil sharpener (d) a plain table fan
28. 28.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
29. 29.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
30. 30.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 9 minutes?
31. 31.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the app shows it
32. 32.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a battery torch (c) a Wi-Fi weather station (d) a smart energy meter
33. 33.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
34. 34.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
35. 35.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
36. 36.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) it is sent by Wi-Fi (c) the sensor measures (d) the app shows it
37. 37.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?
39. 39.What does the cloud server do? (a) shows data to you (b) carries the data (c) acts on a command (d) stores data online
40. 40.🔢 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

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