Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 625 · 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.What does the microcontroller do? (a) shows data to you (b) carries the data (c) reads values, decides (d) acts on a command
2. 2.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
3. 3.What does the sensor do? (a) carries the data (b) reads values, decides (c) acts on a command (d) measures the real world
4. 4.What does the phone app do? (a) stores data online (b) shows data to you (c) carries the data (d) measures the real world
5. 5.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
6. 6.Which of these is an IoT device? (a) a plain wall switch (b) a smart energy meter (c) a wind-up clock (d) a pencil sharpener
7. 7.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a wind-up clock (c) a paper calendar (d) a plain wall switch
8. 8.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 190 readings take?
9. 9.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
10. 10.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the cloud stores it (d) the board reads it
11. 11.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
13. 13.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the sensor measures (c) it is sent by Wi-Fi (d) the app shows it
14. 14.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Talk (d) Internet of Things
15. 15.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
16. 16.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a wind-up clock
17. 17.Which of these is an IoT device? (a) a battery torch (b) a fitness band with app (c) a pencil sharpener (d) a plain wall switch
18. 18.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain table fan (c) a battery torch (d) a Wi-Fi doorbell camera
19. 19.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) actuator (c) Wi-Fi (d) sensor
20. 20.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) microcontroller (c) sensor (d) Wi-Fi
21. 21.What does the cloud server do? (a) stores data online (b) carries the data (c) reads values, decides (d) measures the real world
22. 22.What does the actuator do? (a) acts on a command (b) shows data to you (c) carries the data (d) measures the real world
23. 23.🔍 Which is the odd one out? (a) a paper calendar (b) a pencil sharpener (c) a fitness band with app (d) a wind-up clock
24. 24.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) cloud server (c) actuator (d) Wi-Fi
25. 25.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the board reads it
26. 26.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) by post (d) over Wi-Fi
27. 27.🌐 In an IoT system, which part stores data online? (a) sensor (b) actuator (c) Wi-Fi (d) cloud server
28. 28.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 150 readings take?
29. 29.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
30. 30.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the cloud stores it (c) the board reads it (d) the app shows it
31. 31.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
32. 32.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
33. 33.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
34. 34.Which of these is an IoT device? (a) a pencil sharpener (b) a plain wall switch (c) an app-controlled bulb (d) a paper calendar
35. 35.🔍 Which is the odd one out? (a) a plain wall switch (b) a pencil sharpener (c) a battery torch (d) a smart energy meter
36. 36.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
37. 37.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a wind-up clock (c) a battery torch (d) a plain wall switch
38. 38.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the app shows it (c) the cloud stores it (d) the board reads it
39. 39.🏠 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
40. 40.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device

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