Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 663 · 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 is the LAST step? (a) the app shows it (b) the board reads it (c) the sensor measures (d) it is sent by Wi-Fi
2. 2.What does the microcontroller do? (a) reads values, decides (b) carries the data (c) measures the real world (d) acts on a command
3. 3.What does the phone app do? (a) shows data to you (b) carries the data (c) acts on a command (d) reads values, decides
4. 4.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 160 readings take?
5. 5.🔍 Which is the odd one out? (a) a smart energy meter (b) a wind-up clock (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
6. 6.Which of these is an IoT device? (a) a wind-up clock (b) a pencil sharpener (c) a battery torch (d) a Wi-Fi smart plug
7. 7.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a plain wall switch (d) a Wi-Fi weather station
8. 8.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
9. 9.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Things (d) Internet of Talk
10. 10.Which of these is an IoT device? (a) a pencil sharpener (b) a smart energy meter (c) a paper calendar (d) a plain wall switch
11. 11.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a Wi-Fi smart plug (d) a pencil sharpener
13. 13.What does the sensor do? (a) shows data to you (b) carries the data (c) acts on a command (d) measures the real world
14. 14.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
15. 15.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) a printed map (d) lights on from an app
16. 16.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
17. 17.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 8 minutes?
18. 18.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) actuator (c) cloud server (d) sensor
19. 19.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 90 readings take?
20. 20.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 20 readings take?
21. 21.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
22. 22.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the cloud stores it (b) the app shows it (c) the sensor measures (d) the board reads it
23. 23.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) over Wi-Fi (d) by post
24. 24.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a paper calendar (d) a Wi-Fi doorbell camera
25. 25.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 130 readings take?
26. 26.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?
27. 27.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a wind-up clock
28. 28.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the app shows it (c) it is sent by Wi-Fi (d) the cloud stores it
29. 29.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
30. 30.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
31. 31.Which of these is an IoT device? (a) a plain table fan (b) a paper calendar (c) a pencil sharpener (d) a Wi-Fi doorbell camera
32. 32.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
33. 33.Which of these is an IoT device? (a) a pencil sharpener (b) a wind-up clock (c) a Wi-Fi weather station (d) a plain wall switch
34. 34.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) an app-controlled bulb
35. 35.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
36. 36.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 170 readings take?
37. 37.What does the Wi-Fi link do? (a) measures the real world (b) shows data to you (c) carries the data (d) stores data online
38. 38.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 40 readings take?
39. 39.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
40. 40.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 90 readings take?

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