Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 914 · 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.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 50 readings take?
2. 2.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a paper calendar (c) a wind-up clock (d) a plain wall switch
3. 3.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
4. 4.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
5. 5.🔢 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
6. 6.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) cloud server (c) actuator (d) sensor
7. 7.Which of these is not an IoT device? (a) a pencil sharpener (b) a fitness band with app (c) an app-controlled bulb (d) a smart energy meter
8. 8.What does the sensor do? (a) shows data to you (b) measures the real world (c) acts on a command (d) reads values, decides
9. 9.🌐 In an IoT system, which part measures the real world? (a) phone app (b) cloud server (c) Wi-Fi (d) sensor
10. 10.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the sensor measures (c) the board reads it (d) the app shows it
11. 11.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 50 readings take?
12. 12.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) it is sent by Wi-Fi (c) the app shows it (d) the cloud stores it
13. 13.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain wall switch (c) a smart energy meter (d) a Wi-Fi weather station
14. 14.What does the actuator do? (a) reads values, decides (b) measures the real world (c) stores data online (d) acts on a command
15. 15.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a paper calendar (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
16. 16.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) actuator (c) phone app (d) sensor
17. 17.Which of these is not an IoT device? (a) a fitness band with app (b) a smart energy meter (c) a battery torch (d) a Wi-Fi weather station
18. 18.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
19. 19.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
20. 20.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the board reads it (c) the cloud stores it (d) the sensor measures
21. 21.What does the phone app do? (a) carries the data (b) measures the real world (c) reads values, decides (d) shows data to you
22. 22.What does the cloud server do? (a) acts on a command (b) carries the data (c) stores data online (d) measures the real world
23. 23.🔍 Which is the odd one out? (a) a wind-up clock (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a battery torch
24. 24.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
26. 26.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
27. 27.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
28. 28.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) over Wi-Fi (c) by shouting (d) through a candle
29. 29.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a paper calendar (d) a smart energy meter
30. 30.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a fitness band with app (c) a Wi-Fi smart plug (d) a battery torch
31. 31.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Inside of Toys (d) Input of Tools
32. 32.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 40 readings take?
33. 33.🌐 In an IoT system, which part stores data online? (a) actuator (b) cloud server (c) Wi-Fi (d) sensor
34. 34.🔍 Which is the odd one out? (a) a wind-up clock (b) a battery torch (c) a pencil sharpener (d) a fitness band with app
35. 35.🌐 In an IoT system, which part carries the data? (a) phone app (b) cloud server (c) Wi-Fi (d) microcontroller
36. 36.Which of these is an IoT device? (a) a plain table fan (b) an app-controlled bulb (c) a plain wall switch (d) a paper calendar
37. 37.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the sensor measures (b) the app shows it
38. 38.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a plain wall switch (c) a Wi-Fi weather station (d) an app-controlled bulb
39. 39.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the board reads it (d) the app shows it
40. 40.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?

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