Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 501 · 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.Which of these is an IoT device? (a) a plain table fan (b) a wind-up clock (c) a plain wall switch (d) a Wi-Fi smart plug
2. 2.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
3. 3.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
4. 4.Which of these is an IoT device? (a) a plain table fan (b) a plain wall switch (c) a battery torch (d) a fitness band with app
5. 5.🌐 In an IoT system, which part stores data online? (a) actuator (b) cloud server (c) sensor (d) microcontroller
6. 6.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a battery torch (c) a Wi-Fi doorbell camera (d) a smart energy meter
7. 7.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) microcontroller (c) actuator (d) sensor
8. 8.What does the cloud server do? (a) reads values, decides (b) measures the real world (c) shows data to you (d) stores data online
9. 9.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Inside of Toys (d) Internet of Things
10. 10.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 80 readings take?
12. 12.🔍 Which is the odd one out? (a) a pencil sharpener (b) an app-controlled bulb (c) a smart energy meter (d) a Wi-Fi smart plug
13. 13.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) cloud server (c) sensor (d) phone app
14. 14.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
15. 15.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the app shows it (c) the sensor measures (d) it is sent by Wi-Fi
16. 16.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🔍 Which is the odd one out? (a) a paper calendar (b) a fitness band with app (c) a pencil sharpener (d) a plain table fan
18. 18.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
19. 19.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
20. 20.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 100 readings take?
21. 21.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) actuator (c) Wi-Fi (d) cloud server
22. 22.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
23. 23.What does the actuator do? (a) stores data online (b) reads values, decides (c) acts on a command (d) measures the real world
24. 24.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the board reads it (c) the app shows it (d) the sensor measures
25. 25.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 150 readings take?
26. 26.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a plain table fan
27. 27.🔍 Which is the odd one out? (a) a wind-up clock (b) a smart energy meter (c) a pencil sharpener (d) a plain wall switch
28. 28.🔢 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
29. 29.🔍 Which is the odd one out? (a) a plain table fan (b) a paper calendar (c) a plain wall switch (d) a Wi-Fi doorbell camera
30. 30.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
31. 31.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🌐 In an IoT system, which part shows data to you? (a) phone app (b) microcontroller (c) sensor (d) cloud server
33. 33.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
34. 34.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a fitness band with app (d) a wind-up clock
35. 35.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) an app-controlled bulb (d) a wind-up clock
36. 36.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a fitness band with app
37. 37.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) over Wi-Fi (c) by shouting (d) through a candle
38. 38.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
39. 39.What does the sensor do? (a) acts on a command (b) stores data online (c) measures the real world (d) shows data to you
40. 40.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?

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