Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 412 · 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.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
2. 2.🔍 Which is the odd one out? (a) a battery torch (b) a pencil sharpener (c) a fitness band with app (d) a paper calendar
3. 3.Which of these is an IoT device? (a) a wind-up clock (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a plain wall switch
4. 4.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Internet of Things (d) Input of Tools
5. 5.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) it is sent by Wi-Fi (b) the board reads it
6. 6.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 110 readings take?
7. 7.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) lights on from an app (d) a hand fan
8. 8.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a pencil sharpener (d) a Wi-Fi doorbell camera
9. 9.Which of these is not an IoT device? (a) an app-controlled bulb (b) a plain wall switch (c) a Wi-Fi smart plug (d) a smart energy meter
10. 10.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
11. 11.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) sensor (c) actuator (d) cloud server
12. 12.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the sensor measures (b) the app shows it
13. 13.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) a pencil sharpener (d) a Wi-Fi weather station
14. 14.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
15. 15.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a wind-up clock (d) a paper calendar
17. 17.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
18. 18.Which of these is an IoT device? (a) a plain wall switch (b) a pencil sharpener (c) a plain table fan (d) a smart energy meter
19. 19.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) by post (d) through a candle
20. 20.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a fitness band with app
21. 21.What does the actuator do? (a) reads values, decides (b) measures the real world (c) shows data to you (d) acts on a command
22. 22.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
23. 23.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
24. 24.Which of these is an IoT device? (a) a plain table fan (b) a plain wall switch (c) a Wi-Fi smart plug (d) a pencil sharpener
25. 25.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
26. 26.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) it is sent by Wi-Fi (b) the app shows it
27. 27.🌐 In an IoT system, which part carries the data? (a) sensor (b) Wi-Fi (c) microcontroller (d) actuator
28. 28.What does the sensor do? (a) carries the data (b) stores data online (c) measures the real world (d) reads values, decides
29. 29.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
30. 30.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
31. 31.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 80 readings take?
32. 32.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?
33. 33.What does the microcontroller do? (a) reads values, decides (b) measures the real world (c) acts on a command (d) stores data online
34. 34.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🔢 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
36. 36.🌐 In an IoT system, which part stores data online? (a) sensor (b) phone app (c) cloud server (d) microcontroller
37. 37.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
38. 38.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
39. 39.🔍 Which is the odd one out? (a) a battery torch (b) a smart energy meter (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
40. 40.🌐 In an IoT system, which part acts on a command? (a) sensor (b) actuator (c) microcontroller (d) phone app

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