Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 900 · 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.🔢 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
2. 2.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Things (d) Internet of Talk
3. 3.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a smart energy meter
4. 4.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a pencil sharpener (c) a Wi-Fi weather station (d) a smart energy meter
5. 5.🌐 In an IoT system, which part acts on a command? (a) phone app (b) microcontroller (c) cloud server (d) actuator
6. 6.🌐 In an IoT system, which part stores data online? (a) cloud server (b) microcontroller (c) actuator (d) sensor
7. 7.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a candle in a jar (d) a hand fan
9. 9.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) cloud server (c) actuator (d) phone app
10. 10.What does the actuator do? (a) reads values, decides (b) measures the real world (c) acts on a command (d) shows data to you
11. 11.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
12. 12.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
13. 13.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a plain wall switch
14. 14.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a paper calendar (c) a battery torch (d) a plain table fan
15. 15.🔍 Which is the odd one out? (a) a paper calendar (b) a plain table fan (c) a Wi-Fi weather station (d) a wind-up clock
16. 16.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
17. 17.What does the microcontroller do? (a) measures the real world (b) reads values, decides (c) acts on a command (d) shows data to you
18. 18.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
19. 19.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the app shows it (c) the board reads it (d) the sensor measures
20. 20.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the board reads it (c) the app shows it (d) the cloud stores it
21. 21.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
22. 22.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a Wi-Fi weather station (d) a battery torch
23. 23.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the board reads it (b) the app shows it
24. 24.Which of these is an IoT device? (a) a paper calendar (b) a wind-up clock (c) a battery torch (d) a Wi-Fi doorbell camera
25. 25.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
26. 26.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 90 readings take?
27. 27.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
28. 28.What does the sensor do? (a) measures the real world (b) carries the data (c) acts on a command (d) reads values, decides
29. 29.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by post (d) by shouting
30. 30.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
32. 32.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) a pencil sharpener (d) a fitness band with app
33. 33.Which of these is not an IoT device? (a) an app-controlled bulb (b) a battery torch (c) a fitness band with app (d) a smart energy meter
34. 34.Which of these is an IoT device? (a) a plain table fan (b) a wind-up clock (c) a Wi-Fi smart plug (d) a battery torch
35. 35.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
36. 36.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 20 readings take?
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 paper calendar
38. 38.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
39. 39.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
40. 40.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device

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