Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 266 · 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 the odd one out? (a) a smart energy meter (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a wind-up clock
2. 2.What does the phone app do? (a) carries the data (b) shows data to you (c) reads values, decides (d) stores data online
3. 3.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a battery torch
4. 4.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
5. 5.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
6. 6.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Inside of Toys (d) Internet of Things
7. 7.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
8. 8.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
9. 9.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) by post (d) over Wi-Fi
10. 10.🌐 In an IoT system, which part carries the data? (a) actuator (b) Wi-Fi (c) microcontroller (d) sensor
11. 11.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a paper calendar (c) a battery torch (d) a pencil sharpener
12. 12.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) sensor (c) phone app (d) microcontroller
13. 13.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the cloud stores it (c) the board reads it (d) the app shows it
14. 14.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
15. 15.🌐 In an IoT system, which part stores data online? (a) sensor (b) Wi-Fi (c) cloud server (d) phone app
16. 16.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
17. 17.Which of these is an IoT device? (a) a wind-up clock (b) a pencil sharpener (c) a paper calendar (d) a Wi-Fi weather station
18. 18.🔍 Which is the odd one out? (a) a pencil sharpener (b) a wind-up clock (c) a plain table fan (d) a smart energy meter
19. 19.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 40 readings take?
20. 20.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a plain wall switch
21. 21.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?
22. 22.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) a printed map (d) lights on from an app
23. 23.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
24. 24.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 20 readings take?
25. 25.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
26. 26.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a wind-up clock
27. 27.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
28. 28.What does the cloud server do? (a) shows data to you (b) carries the data (c) measures the real world (d) stores data online
29. 29.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) the sensor measures
30. 30.What does the Wi-Fi link do? (a) measures the real world (b) carries the data (c) reads values, decides (d) acts on a command
31. 31.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain table fan (c) a fitness band with app (d) a Wi-Fi smart plug
32. 32.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
33. 33.Which of these is an IoT device? (a) a wind-up clock (b) a pencil sharpener (c) a paper calendar (d) a fitness band with app
34. 34.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
35. 35.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
36. 36.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
37. 37.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 40 readings take?
38. 38.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the app shows it (c) it is sent by Wi-Fi (d) the cloud stores it
39. 39.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
40. 40.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?

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