Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 978 · 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.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 170 readings take?
2. 2.What does the cloud server do? (a) measures the real world (b) stores data online (c) carries the data (d) shows data to you
3. 3.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the sensor measures (c) the board reads it (d) it is sent by Wi-Fi
4. 4.What does the Wi-Fi link do? (a) carries the data (b) acts on a command (c) measures the real world (d) stores data online
5. 5.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
6. 6.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
7. 7.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 130 readings take?
8. 8.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a paper calendar (c) a smart energy meter (d) an app-controlled bulb
9. 9.What does the actuator do? (a) acts on a command (b) stores data online (c) carries the data (d) measures the real world
10. 10.What does the phone app do? (a) acts on a command (b) stores data online (c) shows data to you (d) measures the real world
11. 11.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
12. 12.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 9 minutes?
14. 14.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a Wi-Fi smart plug (d) a fitness band with app
15. 15.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a plain table fan
16. 16.🌐 In an IoT system, which part shows data to you? (a) actuator (b) microcontroller (c) phone app (d) cloud server
17. 17.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
18. 18.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a pencil sharpener
19. 19.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a battery torch (c) a Wi-Fi doorbell camera (d) a fitness band with app
20. 20.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
21. 21.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Input of Tools (d) Inside of Toys
22. 22.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
23. 23.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) through a candle (d) over Wi-Fi
24. 24.🔢 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
25. 25.Which of these is an IoT device? (a) a plain table fan (b) a wind-up clock (c) a plain wall switch (d) an app-controlled bulb
26. 26.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
27. 27.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
28. 28.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) phone app (c) microcontroller (d) sensor
29. 29.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
30. 30.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a candle in a jar (d) a hand fan
31. 31.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) Wi-Fi (c) cloud server (d) actuator
32. 32.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
33. 33.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) sensor (c) phone app (d) microcontroller
34. 34.What does the microcontroller do? (a) reads values, decides (b) carries the data (c) stores data online (d) shows data to you
35. 35.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi weather station (c) a paper calendar (d) a plain wall switch
36. 36.Which of these is not an IoT device? (a) a plain wall switch (b) an app-controlled bulb (c) a fitness band with app (d) a smart energy meter
37. 37.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a plain wall switch
39. 39.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a plain table fan (d) a Wi-Fi weather station
40. 40.🔍 Which is the odd one out? (a) a fitness band with app (b) a pencil sharpener (c) a plain table fan (d) a paper calendar

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