Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 186 · 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.🌐 In an IoT system, which part shows data to you? (a) phone app (b) sensor (c) Wi-Fi (d) actuator
2. 2.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a plain table fan
3. 3.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
4. 4.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
5. 5.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) phone app (c) Wi-Fi (d) cloud server
6. 6.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 150 readings take?
7. 7.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 180 readings take?
8. 8.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
9. 9.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) it is sent by Wi-Fi (c) the app shows it (d) the sensor measures
10. 10.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
11. 11.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a plain table fan (d) a plain wall switch
12. 12.Which of these is an IoT device? (a) a pencil sharpener (b) a plain table fan (c) a paper calendar (d) a fitness band with app
13. 13.What does the microcontroller do? (a) carries the data (b) stores data online (c) reads values, decides (d) shows data to you
14. 14.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Internet of Talk (d) Inside of Toys
17. 17.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
18. 18.What does the Wi-Fi link do? (a) reads values, decides (b) shows data to you (c) acts on a command (d) carries the data
19. 19.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a candle in a jar (d) a hand fan
20. 20.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
21. 21.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 170 readings take?
22. 22.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
23. 23.What does the phone app do? (a) carries the data (b) stores data online (c) shows data to you (d) acts on a command
24. 24.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) phone app (c) microcontroller (d) cloud server
25. 25.🔍 Which is the odd one out? (a) a paper calendar (b) a plain table fan (c) a pencil sharpener (d) a smart energy meter
26. 26.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
27. 27.Which of these is an IoT device? (a) a plain wall switch (b) a pencil sharpener (c) an app-controlled bulb (d) a battery torch
28. 28.🌐 Is a wind-up clock 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 wind-up clock (c) a Wi-Fi weather station (d) a smart energy meter
30. 30.Which of these is an IoT device? (a) a plain table fan (b) a paper calendar (c) a battery torch (d) a Wi-Fi weather station
31. 31.Which of these is not an IoT device? (a) an app-controlled bulb (b) a fitness band with app (c) a Wi-Fi weather station (d) a plain table fan
32. 32.🌐 In an IoT system, which part acts on a command? (a) actuator (b) Wi-Fi (c) phone app (d) microcontroller
33. 33.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 50 readings take?
34. 34.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a plain wall switch
35. 35.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by post (c) through a candle (d) by shouting
36. 36.🌐 In an IoT system, which part stores data online? (a) actuator (b) cloud server (c) Wi-Fi (d) sensor
37. 37.What does the sensor do? (a) acts on a command (b) measures the real world (c) stores data online (d) carries the data
38. 38.What does the cloud server do? (a) measures the real world (b) carries the data (c) stores data online (d) reads values, decides
39. 39.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
40. 40.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a wind-up clock (d) an app-controlled bulb

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