Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 758 · 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.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
2. 2.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
3. 3.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
4. 4.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) Wi-Fi (c) cloud server (d) sensor
5. 5.What does the actuator do? (a) measures the real world (b) carries the data (c) shows data to you (d) acts on a command
6. 6.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the app shows it (c) the cloud stores it (d) the board reads it
9. 9.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) over Wi-Fi (d) by shouting
10. 10.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi smart plug (c) a battery torch (d) a pencil sharpener
11. 11.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain wall switch (c) a battery torch (d) a Wi-Fi doorbell camera
12. 12.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?
13. 13.🔍 Which is the odd one out? (a) a smart energy meter (b) an app-controlled bulb (c) a wind-up clock (d) a Wi-Fi smart plug
14. 14.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 60 readings take?
15. 15.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
16. 16.🔍 Which is the odd one out? (a) a pencil sharpener (b) a fitness band with app (c) a plain wall switch (d) a plain table fan
17. 17.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a battery torch (d) a smart energy meter
18. 18.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 200 readings take?
19. 19.What does the microcontroller do? (a) stores data online (b) carries the data (c) reads values, decides (d) shows data to you
20. 20.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a wind-up clock
21. 21.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a battery torch (d) an app-controlled bulb
22. 22.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a battery torch (d) a fitness band with app
23. 23.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a plain wall switch
24. 24.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
25. 25.What does the sensor do? (a) carries the data (b) measures the real world (c) shows data to you (d) reads values, decides
26. 26.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
27. 27.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a hand fan (d) a candle in a jar
28. 28.Which of these is not an IoT device? (a) a paper calendar (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a Wi-Fi smart plug
29. 29.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
30. 30.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a fitness band with app
31. 31.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the sensor measures (c) the cloud stores it (d) the app shows it
32. 32.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Things (d) Internet of Talk
33. 33.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) an app-controlled bulb (d) a plain wall switch
34. 34.🌐 In an IoT system, which part measures the real world? (a) sensor (b) cloud server (c) microcontroller (d) actuator
35. 35.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
36. 36.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
37. 37.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 7 minutes?
38. 38.🌐 In an IoT system, which part shows data to you? (a) actuator (b) phone app (c) microcontroller (d) sensor
39. 39.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
40. 40.What does the Wi-Fi link do? (a) carries the data (b) reads values, decides (c) shows data to you (d) acts on a command

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