Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 253 · 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 is a smart-home example? (a) a printed map (b) a candle in a jar (c) lights on from an app (d) a hand fan
2. 2.What does the phone app do? (a) reads values, decides (b) acts on a command (c) shows data to you (d) measures the real world
3. 3.What does the cloud server do? (a) reads values, decides (b) acts on a command (c) shows data to you (d) stores data online
4. 4.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
5. 5.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
6. 6.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
7. 7.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
8. 8.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
9. 9.🌐 What does IoT stand for? (a) Internet of Things (b) Input of Tools (c) Inside of Toys (d) Internet of Talk
10. 10.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
11. 11.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a fitness band with app (d) a plain table fan
12. 12.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 7 minutes?
13. 13.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
14. 14.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) the sensor measures (c) the board reads it (d) it is sent by Wi-Fi
15. 15.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
16. 16.Which of these is an IoT device? (a) an app-controlled bulb (b) a paper calendar (c) a plain wall switch (d) a pencil sharpener
17. 17.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 30 readings take?
18. 18.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 150 readings take?
19. 19.🔍 Which is the odd one out? (a) a fitness band with app (b) a smart energy meter (c) an app-controlled bulb (d) a plain wall switch
20. 20.🔍 Which is the odd one out? (a) a paper calendar (b) a wind-up clock (c) a pencil sharpener (d) a fitness band with app
21. 21.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
22. 22.🌐 In an IoT system, which part shows data to you? (a) actuator (b) Wi-Fi (c) microcontroller (d) phone app
23. 23.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the board reads it
24. 24.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a fitness band with app
25. 25.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) a plain wall switch (d) a plain table fan
26. 26.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
27. 27.What does the actuator do? (a) shows data to you (b) measures the real world (c) acts on a command (d) stores data online
28. 28.What does the sensor do? (a) acts on a command (b) reads values, decides (c) stores data online (d) measures the real world
29. 29.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
30. 30.🌐 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
31. 31.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) a plain table fan (d) a Wi-Fi smart plug
32. 32.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
33. 33.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 150 readings take?
34. 34.What does the microcontroller do? (a) shows data to you (b) reads values, decides (c) stores data online (d) measures the real world
35. 35.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) microcontroller (c) Wi-Fi (d) phone app
36. 36.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 190 readings take?
37. 37.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a fitness band with app
38. 38.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
39. 39.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
40. 40.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?

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