Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 955 · 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.What does the phone app do? (a) shows data to you (b) acts on a command (c) stores data online (d) measures the real world
2. 2.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a pencil sharpener (c) a plain wall switch (d) a paper calendar
3. 3.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) a hand fan (d) lights on from an app
4. 4.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
5. 5.🌐 In an IoT system, which part shows data to you? (a) phone app (b) sensor (c) cloud server (d) Wi-Fi
6. 6.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a pencil sharpener (d) a fitness band with app
7. 7.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) it is sent by Wi-Fi (b) the app shows it
8. 8.What does the cloud server do? (a) stores data online (b) reads values, decides (c) shows data to you (d) measures the real world
9. 9.🔍 Which is the odd one out? (a) a plain wall switch (b) a plain table fan (c) a wind-up clock (d) a Wi-Fi smart plug
10. 10.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a fitness band with app (c) a plain wall switch (d) a smart energy meter
11. 11.🔢 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) the cloud stores it
12. 12.🌐 In an IoT system, which part measures the real world? (a) sensor (b) actuator (c) phone app (d) microcontroller
13. 13.🌐 What does IoT stand for? (a) Internet of Things (b) Input of Tools (c) Internet of Talk (d) Inside of Toys
14. 14.🔍 Which is the odd one out? (a) a pencil sharpener (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a fitness band with app
15. 15.What does the actuator do? (a) acts on a command (b) shows data to you (c) reads values, decides (d) measures the real world
16. 16.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) through a candle (c) over Wi-Fi (d) by shouting
17. 17.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
18. 18.Which of these is an IoT device? (a) an app-controlled bulb (b) a paper calendar (c) a plain wall switch (d) a pencil sharpener
19. 19.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) it is sent by Wi-Fi
20. 20.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 60 readings take?
21. 21.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 50 readings take?
22. 22.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 190 readings take?
23. 23.🔍 Which is the odd one out? (a) a smart energy meter (b) a fitness band with app (c) a plain table fan (d) an app-controlled bulb
24. 24.What does the Wi-Fi link do? (a) reads values, decides (b) measures the real world (c) stores data online (d) carries the data
25. 25.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 7 minutes?
26. 26.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
27. 27.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
28. 28.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
29. 29.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
30. 30.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 190 readings take?
31. 31.What does the sensor do? (a) stores data online (b) measures the real world (c) shows data to you (d) acts on a command
32. 32.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
34. 34.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a battery torch
35. 35.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
36. 36.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
37. 37.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) microcontroller (c) Wi-Fi (d) phone app
39. 39.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the sensor measures (b) the app shows it
40. 40.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 80 readings take?

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