Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 957 · 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 plain table fan (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a smart energy meter
2. 2.Which of these is not an IoT device? (a) a paper calendar (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a fitness band with app
3. 3.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Inside of Toys (d) Internet of Things
4. 4.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
5. 5.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 90 readings take?
6. 6.Which of these is an IoT device? (a) a pencil sharpener (b) a battery torch (c) an app-controlled bulb (d) a plain table fan
7. 7.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
8. 8.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
9. 9.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
10. 10.🌐 In an IoT system, which part measures the real world? (a) actuator (b) Wi-Fi (c) sensor (d) microcontroller
11. 11.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a battery torch (c) an app-controlled bulb (d) a fitness band with app
12. 12.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) over Wi-Fi (d) by post
14. 14.What does the Wi-Fi link do? (a) reads values, decides (b) stores data online (c) acts on a command (d) carries the data
15. 15.Which of these is not an IoT device? (a) a pencil sharpener (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
16. 16.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?
17. 17.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
18. 18.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) the sensor measures (b) it is sent by Wi-Fi
19. 19.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 9 minutes?
20. 20.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a plain wall switch (d) a Wi-Fi weather station
21. 21.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a fitness band with app (d) a smart energy meter
22. 22.🏠 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
23. 23.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) a plain wall switch (d) a Wi-Fi doorbell camera
24. 24.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
25. 25.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
26. 26.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the cloud stores it (c) it is sent by Wi-Fi (d) the board reads it
27. 27.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
28. 28.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the app shows it (c) it is sent by Wi-Fi (d) the cloud stores it
29. 29.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
30. 30.🌐 In an IoT system, which part stores data online? (a) cloud server (b) phone app (c) sensor (d) actuator
31. 31.What does the microcontroller do? (a) measures the real world (b) carries the data (c) acts on a command (d) reads values, decides
32. 32.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) phone app (c) actuator (d) sensor
33. 33.What does the actuator do? (a) acts on a command (b) measures the real world (c) reads values, decides (d) stores data online
34. 34.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
35. 35.Which of these is an IoT device? (a) a pencil sharpener (b) a paper calendar (c) a wind-up clock (d) a fitness band with app
36. 36.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi smart plug (c) a pencil sharpener (d) a wind-up clock
37. 37.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?
38. 38.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) the board reads it (c) it is sent by Wi-Fi (d) the app shows it
39. 39.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?
40. 40.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?

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