Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 618 · 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 sensor measures”? (a) it is sent by Wi-Fi (b) the board reads it (c) the app shows it (d) the cloud stores it
2. 2.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
3. 3.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
4. 4.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
5. 5.🌐 In an IoT system, which part measures the real world? (a) actuator (b) cloud server (c) sensor (d) microcontroller
6. 6.What does the microcontroller do? (a) stores data online (b) carries the data (c) shows data to you (d) reads values, decides
7. 7.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a plain wall switch (c) a battery torch (d) a plain table fan
8. 8.🌐 In an IoT system, which part stores data online? (a) sensor (b) phone app (c) actuator (d) cloud server
9. 9.What does the cloud server do? (a) carries the data (b) reads values, decides (c) stores data online (d) measures the real world
10. 10.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) actuator (c) microcontroller (d) phone app
11. 11.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
12. 12.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a wind-up clock (c) a fitness band with app (d) a Wi-Fi doorbell camera
13. 13.What does the phone app do? (a) reads values, decides (b) carries the data (c) measures the real world (d) shows data to you
14. 14.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by shouting (c) by post (d) through a candle
15. 15.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a Wi-Fi weather station (d) a smart energy meter
16. 16.What does the Wi-Fi link do? (a) acts on a command (b) shows data to you (c) stores data online (d) carries the data
17. 17.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
18. 18.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the app shows it
19. 19.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain table fan (c) a paper calendar (d) a battery torch
20. 20.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
21. 21.Which of these is an IoT device? (a) a plain wall switch (b) a fitness band with app (c) a battery torch (d) a pencil sharpener
22. 22.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
23. 23.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
24. 24.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
25. 25.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the board reads it (c) it is sent by Wi-Fi (d) the app shows it
26. 26.Which of these is not an IoT device? (a) a fitness band with app (b) a pencil sharpener (c) a smart energy meter (d) a Wi-Fi smart plug
27. 27.What does the sensor do? (a) carries the data (b) acts on a command (c) measures the real world (d) reads values, decides
28. 28.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
29. 29.🔍 Which is the odd one out? (a) a fitness band with app (b) a paper calendar (c) a plain table fan (d) a plain wall switch
30. 30.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 110 readings take?
31. 31.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
32. 32.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
33. 33.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 60 readings take?
34. 34.🌐 In an IoT system, which part carries the data? (a) cloud server (b) microcontroller (c) Wi-Fi (d) actuator
35. 35.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 150 readings take?
36. 36.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
37. 37.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 100 readings take?
38. 38.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) it is sent by Wi-Fi (c) the cloud stores it (d) the app shows it
39. 39.🔍 Which is the odd one out? (a) a battery torch (b) a wind-up clock (c) a paper calendar (d) a smart energy meter
40. 40.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 5 minutes?

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