Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 767 · 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 sensor measures (b) the board reads it (c) the app shows it (d) it is sent by Wi-Fi
2. 2.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) microcontroller (c) actuator (d) phone app
3. 3.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
4. 4.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Input of Tools (d) Internet of Things
5. 5.Which of these is an IoT device? (a) a battery torch (b) a plain table fan (c) a pencil sharpener (d) a Wi-Fi weather station
6. 6.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
7. 7.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
8. 8.What does the phone app do? (a) reads values, decides (b) shows data to you (c) acts on a command (d) measures the real world
9. 9.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) actuator (c) sensor (d) microcontroller
10. 10.Which of these is an IoT device? (a) a plain wall switch (b) a plain table fan (c) a Wi-Fi smart plug (d) a pencil sharpener
11. 11.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) actuator (c) sensor (d) phone app
13. 13.🔍 Which is the odd one out? (a) a paper calendar (b) a battery torch (c) an app-controlled bulb (d) a plain table fan
14. 14.🔍 Which is the odd one out? (a) a smart energy meter (b) a battery torch (c) a fitness band with app (d) a Wi-Fi weather station
15. 15.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
16. 16.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
17. 17.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
18. 18.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) the sensor measures (b) it is sent by Wi-Fi
19. 19.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 40 readings take?
20. 20.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) sensor (c) microcontroller (d) phone app
21. 21.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
22. 22.Which of these is an IoT device? (a) a pencil sharpener (b) an app-controlled bulb (c) a plain wall switch (d) a battery torch
23. 23.What does the sensor do? (a) acts on a command (b) carries the data (c) measures the real world (d) reads values, decides
24. 24.What does the cloud server do? (a) measures the real world (b) shows data to you (c) acts on a command (d) stores data online
25. 25.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
26. 26.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
27. 27.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a battery torch (d) a fitness band with app
28. 28.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a plain table fan
29. 29.Which of these is an IoT device? (a) a plain table fan (b) a fitness band with app (c) a plain wall switch (d) a wind-up clock
30. 30.🔍 Which is the odd one out? (a) a plain table fan (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a paper calendar
31. 31.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
32. 32.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a Wi-Fi smart plug
33. 33.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
34. 34.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a Wi-Fi smart plug
35. 35.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi weather station (c) a plain table fan (d) a Wi-Fi doorbell camera
36. 36.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
37. 37.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 170 readings take?
38. 38.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
40. 40.🌐 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

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