Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 139 · 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, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) it is sent by Wi-Fi (b) the sensor measures
2. 2.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
3. 3.🔢 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 sensor measures (d) the board reads it
4. 4.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) the app shows it (c) it is sent by Wi-Fi (d) the sensor measures
5. 5.What does the microcontroller do? (a) shows data to you (b) measures the real world (c) reads values, decides (d) stores data online
6. 6.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a Wi-Fi smart plug (d) a paper calendar
7. 7.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) sensor (c) actuator (d) microcontroller
8. 8.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
9. 9.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the board reads it (d) the app shows it
10. 10.What does the phone app do? (a) shows data to you (b) acts on a command (c) carries the data (d) stores data online
11. 11.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 90 readings take?
13. 13.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
14. 14.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) microcontroller (c) phone app (d) actuator
15. 15.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) the board reads it (b) it is sent by Wi-Fi
16. 16.🔢 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) the app shows it (d) it is sent by Wi-Fi
17. 17.🔍 Which is the odd one out? (a) a plain wall switch (b) a battery torch (c) a pencil sharpener (d) a Wi-Fi doorbell camera
18. 18.🌐 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
19. 19.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
20. 20.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
21. 21.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?
22. 22.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a pencil sharpener
23. 23.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Internet of Talk (d) Inside of Toys
24. 24.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the board reads it (b) the cloud stores it
25. 25.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 7 minutes?
26. 26.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) actuator (c) sensor (d) cloud server
27. 27.Which of these is not an IoT device? (a) a plain table fan (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
28. 28.🌐 In an IoT system, which part stores data online? (a) sensor (b) phone app (c) Wi-Fi (d) cloud server
29. 29.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
30. 30.Which of these is an IoT device? (a) a fitness band with app (b) a paper calendar (c) a plain wall switch (d) a wind-up clock
31. 31.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
32. 32.Which of these is not an IoT device? (a) a battery torch (b) a Wi-Fi smart plug (c) a fitness band with app (d) an app-controlled bulb
33. 33.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
34. 34.🔍 Which is the odd one out? (a) a paper calendar (b) a pencil sharpener (c) an app-controlled bulb (d) a wind-up clock
35. 35.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
36. 36.What does the actuator do? (a) acts on a command (b) carries the data (c) stores data online (d) reads values, decides
37. 37.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a wind-up clock
38. 38.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 10 minutes?
39. 39.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 190 readings take?
40. 40.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device

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