Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 661 · 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: “the app shows it” or “the sensor measures”? (a) the app shows it (b) the sensor measures
2. 2.🌐 In an IoT system, which part stores data online? (a) sensor (b) microcontroller (c) actuator (d) cloud server
3. 3.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a plain table fan (d) an app-controlled bulb
4. 4.🌐 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
5. 5.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
6. 6.What does the sensor do? (a) measures the real world (b) shows data to you (c) carries the data (d) reads values, decides
7. 7.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the board reads it (c) the app shows it (d) the sensor measures
8. 8.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
9. 9.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
10. 10.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) Wi-Fi (c) actuator (d) phone app
12. 12.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) microcontroller (c) phone app (d) sensor
13. 13.Which of these is an IoT device? (a) a plain table fan (b) a battery torch (c) a Wi-Fi smart plug (d) a pencil sharpener
14. 14.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
15. 15.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a paper calendar (d) a smart energy meter
16. 16.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
17. 17.🔍 Which is the odd one out? (a) a plain wall switch (b) an app-controlled bulb (c) a smart energy meter (d) a fitness band with app
18. 18.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a plain table fan (c) a smart energy meter (d) a fitness band with app
19. 19.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 90 readings take?
20. 20.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
21. 21.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) a Wi-Fi doorbell camera (d) a wind-up clock
22. 22.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 100 readings take?
23. 23.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a fitness band with app (d) a battery torch
24. 24.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Things (d) Internet of Talk
25. 25.What does the microcontroller do? (a) stores data online (b) measures the real world (c) acts on a command (d) reads values, decides
26. 26.What does the Wi-Fi link do? (a) acts on a command (b) carries the data (c) reads values, decides (d) measures the real world
27. 27.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) Wi-Fi (c) actuator (d) microcontroller
28. 28.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
29. 29.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a fitness band with app (c) a Wi-Fi smart plug (d) a pencil sharpener
30. 30.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
31. 31.Which of these is an IoT device? (a) a plain wall switch (b) a pencil sharpener (c) a smart energy meter (d) a wind-up clock
32. 32.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 10 minutes?
33. 33.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 120 readings take?
34. 34.Which of these is an IoT device? (a) a plain wall switch (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a paper calendar
35. 35.🔢 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
36. 36.What does the cloud server do? (a) stores data online (b) carries the data (c) reads values, decides (d) shows data to you
37. 37.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
38. 38.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
39. 39.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 190 readings take?
40. 40.What does the phone app do? (a) measures the real world (b) shows data to you (c) carries the data (d) reads values, decides

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