Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 349 · 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 10 seconds. How many readings does it send in 9 minutes?
2. 2.🌐 In an IoT system, which part acts on a command? (a) sensor (b) cloud server (c) actuator (d) Wi-Fi
3. 3.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a hand fan (d) a printed map
4. 4.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
5. 5.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
6. 6.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Things (d) Internet of Talk
8. 8.Which of these is an IoT device? (a) a plain table fan (b) a pencil sharpener (c) a battery torch (d) a smart energy meter
9. 9.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the sensor measures (c) it is sent by Wi-Fi (d) the app shows it
10. 10.Which of these is an IoT device? (a) a plain wall switch (b) a paper calendar (c) a Wi-Fi smart plug (d) a plain table fan
11. 11.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) an app-controlled bulb
12. 12.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a wind-up clock (d) a plain wall switch
14. 14.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
15. 15.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a fitness band with app (d) an app-controlled bulb
16. 16.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 100 readings take?
17. 17.What does the actuator do? (a) acts on a command (b) reads values, decides (c) carries the data (d) measures the real world
18. 18.What does the Wi-Fi link do? (a) carries the data (b) shows data to you (c) acts on a command (d) stores data online
19. 19.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain table fan (c) a wind-up clock (d) a plain wall switch
20. 20.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a plain table fan (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
21. 21.What does the cloud server do? (a) measures the real world (b) stores data online (c) shows data to you (d) carries the data
22. 22.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
23. 23.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
24. 24.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a battery torch (d) a smart energy meter
25. 25.🌐 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
26. 26.What does the phone app do? (a) acts on a command (b) carries the data (c) stores data online (d) shows data to you
27. 27.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
28. 28.🌐 In an IoT system, which part carries the data? (a) cloud server (b) Wi-Fi (c) actuator (d) microcontroller
29. 29.🌐 In an IoT system, which part shows data to you? (a) sensor (b) cloud server (c) phone app (d) microcontroller
30. 30.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
31. 31.What does the sensor do? (a) shows data to you (b) stores data online (c) measures the real world (d) carries the data
32. 32.Which of these is not an IoT device? (a) a wind-up clock (b) a Wi-Fi smart plug (c) a fitness band with app (d) a smart energy meter
33. 33.Which of these is an IoT device? (a) a paper calendar (b) a wind-up clock (c) an app-controlled bulb (d) a battery torch
34. 34.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
35. 35.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the app shows it (d) the cloud stores it
36. 36.🔍 Which is the odd one out? (a) a fitness band with app (b) a paper calendar (c) a smart energy meter (d) a Wi-Fi weather station
37. 37.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
40. 40.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?

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